7565994012 has 96 divisors (see below), whose sum is σ = 18523717632. Its totient is φ = 2401491456.

The previous prime is 7565994011. The next prime is 7565994031. The reversal of 7565994012 is 2104995657.

It is a super-2 number, since 2×7565994012² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7565994011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3795288 + ... + 3797280.

It is an arithmetic number, because the mean of its divisors is an integer number (192955392).

Almost surely, 2^7565994012 is an apocalyptic number.

It is an amenable number.

7565994012 is an abundant number, since it is smaller than the sum of its proper divisors (10957723620).

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

7565994012 is a wasteful number, since it uses less digits than its factorization.

7565994012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2227 (or 2225 counting only the distinct ones).

The product of its (nonzero) digits is 680400, while the sum is 48.

The square root of 7565994012 is about 86982.7224913086. The cubic root of 7565994012 is about 1963.1583477848.

The spelling of 7565994012 in words is "seven billion, five hundred sixty-five million, nine hundred ninety-four thousand, twelve".