9192639012 has 12 divisors (see below), whose sum is σ = 21449491056. Its totient is φ = 3064213000.

The previous prime is 9192638993. The next prime is 9192639013. The reversal of 9192639012 is 2109362919.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×9192639012² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (9192639013) 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, 383026614 + ... + 383026637.

It is an arithmetic number, because the mean of its divisors is an integer number (1787457588).

Almost surely, 2^9192639012 is an apocalyptic number.

It is an amenable number.

9192639012 is an abundant number, since it is smaller than the sum of its proper divisors (12256852044).

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

9192639012 is a wasteful number, since it uses less digits than its factorization.

9192639012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 766053258 (or 766053256 counting only the distinct ones).

The product of its (nonzero) digits is 52488, while the sum is 42.

The square root of 9192639012 is about 95878.2509852991. The cubic root of 9192639012 is about 2094.8201144621.

The spelling of 9192639012 in words is "nine billion, one hundred ninety-two million, six hundred thirty-nine thousand, twelve".