770613888 has 128 divisors (see below), whose sum is σ = 2245256640. Its totient is φ = 232243200.

The previous prime is 770613871. The next prime is 770613889. The reversal of 770613888 is 888316077.

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 not an unprimeable number, because it can be changed into a prime (770613889) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1017606 + ... + 1018362.

Almost surely, 2^770613888 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 770613888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1122628320).

770613888 is an abundant number, since it is smaller than the sum of its proper divisors (1474642752).

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

770613888 is a wasteful number, since it uses less digits than its factorization.

770613888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1026 (or 1014 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 48.

The square root of 770613888 is about 27759.9331411299. The cubic root of 770613888 is about 916.8091602324.

The spelling of 770613888 in words is "seven hundred seventy million, six hundred thirteen thousand, eight hundred eighty-eight".