7625256816 has 20 divisors (see below), whose sum is σ = 19698580232. Its totient is φ = 2541752256.

The previous prime is 7625256811. The next prime is 7625256883. The reversal of 7625256816 is 6186525267.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 158859517 = 7625256816 / (7 + 6 + 2 + 5 + 2 + 5 + 6 + 8 + 1 + 6).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7625256811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79429711 + ... + 79429806.

Almost surely, 2^7625256816 is an apocalyptic number.

It is an amenable number.

7625256816 is an abundant number, since it is smaller than the sum of its proper divisors (12073323416).

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

7625256816 is a wasteful number, since it uses less digits than its factorization.

7625256816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158859528 (or 158859522 counting only the distinct ones).

The product of its digits is 1209600, while the sum is 48.

The square root of 7625256816 is about 87322.7164946213. The cubic root of 7625256816 is about 1968.2706886901.

The spelling of 7625256816 in words is "seven billion, six hundred twenty-five million, two hundred fifty-six thousand, eight hundred sixteen".