15001251272 has 64 divisors (see below), whose sum is σ = 32768736000. Its totient is φ = 6305091840.

The previous prime is 15001251263. The next prime is 15001251301. The reversal of 15001251272 is 27215210051.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1185893 + ... + 1198475.

It is an arithmetic number, because the mean of its divisors is an integer number (512011500).

Almost surely, 2^15001251272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15001251272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16384368000).

15001251272 is an abundant number, since it is smaller than the sum of its proper divisors (17767484728).

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

15001251272 is a wasteful number, since it uses less digits than its factorization.

15001251272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13006 (or 13002 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 26.

The spelling of 15001251272 in words is "fifteen billion, one million, two hundred fifty-one thousand, two hundred seventy-two".