7628785696 has 72 divisors (see below), whose sum is σ = 17589077100. Its totient is φ = 3247437312.

The previous prime is 7628785693. The next prime is 7628785739. The reversal of 7628785696 is 6965878267.

It can be written as a sum of positive squares in 2 ways, for example, as 7079539600 + 549246096 = 84140^2 + 23436^2 .

It is not an unprimeable number, because it can be changed into a prime (7628785693) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 217306 + ... + 249958.

Almost surely, 2^7628785696 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 7628785696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8794538550).

7628785696 is an abundant number, since it is smaller than the sum of its proper divisors (9960291404).

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

7628785696 is a wasteful number, since it uses less digits than its factorization.

7628785696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32826 (or 32811 counting only the distinct ones).

The product of its digits is 60963840, while the sum is 64.

The square root of 7628785696 is about 87342.9201252168. The cubic root of 7628785696 is about 1968.5742727763.

The spelling of 7628785696 in words is "seven billion, six hundred twenty-eight million, seven hundred eighty-five thousand, six hundred ninety-six".