15349023012 has 12 divisors (see below), whose sum is σ = 35814387056. Its totient is φ = 5116341000.

The previous prime is 15349022999. The next prime is 15349023013. The reversal of 15349023012 is 21032094351.

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

It is not an unprimeable number, because it can be changed into a prime (15349023013) 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, 639542614 + ... + 639542637.

Almost surely, 2^15349023012 is an apocalyptic number.

15349023012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15349023012 is an abundant number, since it is smaller than the sum of its proper divisors (20465364044).

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

15349023012 is a wasteful number, since it uses less digits than its factorization.

15349023012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1279085258 (or 1279085256 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

The spelling of 15349023012 in words is "fifteen billion, three hundred forty-nine million, twenty-three thousand, twelve".