78201768 has 32 divisors (see below), whose sum is σ = 207005760. Its totient is φ = 24533760.

The previous prime is 78201733. The next prime is 78201769. The reversal of 78201768 is 86710287.

It is a super-2 number, since 2×78201768² = 12231033036651648, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78201769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95428 + ... + 96243.

It is an arithmetic number, because the mean of its divisors is an integer number (6468930).

Almost surely, 2^78201768 is an apocalyptic number.

It is an amenable number.

78201768 is an abundant number, since it is smaller than the sum of its proper divisors (128803992).

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

78201768 is a wasteful number, since it uses less digits than its factorization.

78201768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191697 (or 191693 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 39.

The square root of 78201768 is about 8843.1763524200. The cubic root of 78201768 is about 427.6339636930.

The spelling of 78201768 in words is "seventy-eight million, two hundred one thousand, seven hundred sixty-eight".