7655900004 has 45 divisors (see below), whose sum is σ = 20018153001. Its totient is φ = 2551441680.

The previous prime is 7655899943. The next prime is 7655900011. The reversal of 7655900004 is 4000095567.

The square root of 7655900004 is 87498.

It is a perfect power (a square), and thus also a powerful number.

7655900004 is a `hidden beast` number, since 7 + 65 + 590 + 0 + 0 + 0 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 7038874404 + 617025600 = 83898^2 + 24840^2 .

It is a super-2 number, since 2×7655900004² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 1572534 + ... + 1577394.

Almost surely, 2^7655900004 is an apocalyptic number.

7655900004 is the 87498-th square number.

It is an amenable number.

7655900004 is an abundant number, since it is smaller than the sum of its proper divisors (12362252997).

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

7655900004 is an frugal number, since it uses more digits than its factorization.

7655900004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9738 (or 4866 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The cubic root of 7655900004 is about 1970.9037573851.

Multiplying 7655900004 by its sum of digits (36), we get a square (275612400144 = 524988²).

7655900004 divided by its sum of digits (36) gives a square (212663889 = 14583²).

The spelling of 7655900004 in words is "seven billion, six hundred fifty-five million, nine hundred thousand, four".