7725747204 has 72 divisors (see below), whose sum is σ = 23088461760. Its totient is φ = 2131238592.

The previous prime is 7725747179. The next prime is 7725747209. The reversal of 7725747204 is 4027475277.

7725747204 is a `hidden beast` number, since 7 + 7 + 2 + 574 + 72 + 0 + 4 = 666.

It is a super-2 number, since 2×7725747204² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7725747204.

It is not an unprimeable number, because it can be changed into a prime (7725747209) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 521274 + ... + 535889.

It is an arithmetic number, because the mean of its divisors is an integer number (320673080).

Almost surely, 2^7725747204 is an apocalyptic number.

It is an amenable number.

7725747204 is an abundant number, since it is smaller than the sum of its proper divisors (15362714556).

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

7725747204 is a wasteful number, since it uses less digits than its factorization.

7725747204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1057209 (or 1057204 counting only the distinct ones).

The product of its (nonzero) digits is 768320, while the sum is 45.

The square root of 7725747204 is about 87896.2297484938. The cubic root of 7725747204 is about 1976.8793480160.

The spelling of 7725747204 in words is "seven billion, seven hundred twenty-five million, seven hundred forty-seven thousand, two hundred four".