15249806980 has 24 divisors (see below), whose sum is σ = 33710100480. Its totient is φ = 5778874080.

The previous prime is 15249806963. The next prime is 15249806981. The reversal of 15249806980 is 8960894251.

15249806980 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×15249806980² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (15249806981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20065156 + ... + 20065915.

It is an arithmetic number, because the mean of its divisors is an integer number (1404587520).

Almost surely, 2^15249806980 is an apocalyptic number.

15249806980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15249806980 is an abundant number, since it is smaller than the sum of its proper divisors (18460293500).

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

15249806980 is a wasteful number, since it uses less digits than its factorization.

15249806980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40131099 (or 40131097 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 52.

The spelling of 15249806980 in words is "fifteen billion, two hundred forty-nine million, eight hundred six thousand, nine hundred eighty".