7850459136 has 128 divisors (see below), whose sum is σ = 22548234240. Its totient is φ = 2415132672.

The previous prime is 7850459119. The next prime is 7850459143. The reversal of 7850459136 is 6319540587.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1274881 + ... + 1281023.

It is an arithmetic number, because the mean of its divisors is an integer number (176158080).

Almost surely, 2^7850459136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7850459136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11274117120).

7850459136 is an abundant number, since it is smaller than the sum of its proper divisors (14697775104).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7850459136 is an equidigital number, since it uses as much as digits as its factorization.

7850459136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6189 (or 6161 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 48.

The square root of 7850459136 is about 88602.8167498077. The cubic root of 7850459136 is about 1987.4597973277.

The spelling of 7850459136 in words is "seven billion, eight hundred fifty million, four hundred fifty-nine thousand, one hundred thirty-six".