15129811140 has 24 divisors (see below), whose sum is σ = 42363471360. Its totient is φ = 4034616288.

The previous prime is 15129811133. The next prime is 15129811153. The reversal of 15129811140 is 4111892151.

It is a super-2 number, since 2×15129811140² (a number of 21 digits) contains 22 as substring.

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, 126081700 + ... + 126081819.

It is an arithmetic number, because the mean of its divisors is an integer number (1765144640).

Almost surely, 2^15129811140 is an apocalyptic number.

15129811140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15129811140 is an abundant number, since it is smaller than the sum of its proper divisors (27233660220).

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

15129811140 is a wasteful number, since it uses less digits than its factorization.

15129811140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252163531 (or 252163529 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 33.

The spelling of 15129811140 in words is "fifteen billion, one hundred twenty-nine million, eight hundred eleven thousand, one hundred forty".