7725264816 has 40 divisors (see below), whose sum is σ = 20068447680. Its totient is φ = 2560699456.

The previous prime is 7725264809. The next prime is 7725264823. The reversal of 7725264816 is 6184625277.

It is an interprime number because it is at equal distance from previous prime (7725264809) and next prime (7725264823).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 440970 + ... + 458153.

It is an arithmetic number, because the mean of its divisors is an integer number (501711192).

Almost surely, 2^7725264816 is an apocalyptic number.

It is an amenable number.

7725264816 is an abundant number, since it is smaller than the sum of its proper divisors (12343182864).

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

7725264816 is a wasteful number, since it uses less digits than its factorization.

7725264816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 899313 (or 899307 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 48.

The square root of 7725264816 is about 87893.4856289134. The cubic root of 7725264816 is about 1976.8382023637.

The spelling of 7725264816 in words is "seven billion, seven hundred twenty-five million, two hundred sixty-four thousand, eight hundred sixteen".