15402585012 has 24 divisors (see below), whose sum is σ = 35965694016. Its totient is φ = 5130433728.

The previous prime is 15402585001. The next prime is 15402585031. The reversal of 15402585012 is 21058520451.

It is a congruent number.

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, 453073 + ... + 485880.

It is an arithmetic number, because the mean of its divisors is an integer number (1498570584).

Almost surely, 2^15402585012 is an apocalyptic number.

15402585012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15402585012 is an abundant number, since it is smaller than the sum of its proper divisors (20563109004).

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

15402585012 is a wasteful number, since it uses less digits than its factorization.

15402585012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 940327 (or 940325 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 33.

The spelling of 15402585012 in words is "fifteen billion, four hundred two million, five hundred eighty-five thousand, twelve".