15178480886672 has 80 divisors (see below), whose sum is σ = 31629550757760. Its totient is φ = 7034163941376.

The previous prime is 15178480886663. The next prime is 15178480886689. The reversal of 15178480886672 is 27668808487151.

It is a junction number, because it is equal to n+sod(n) for n = 15178480886596 and 15178480886605.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4353173 + ... + 7021899.

It is an arithmetic number, because the mean of its divisors is an integer number (395369384472).

Almost surely, 2^{15178480886672} 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 15178480886672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15814775378880).

15178480886672 is an abundant number, since it is smaller than the sum of its proper divisors (16451069871088).

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

15178480886672 is a wasteful number, since it uses less digits than its factorization.

15178480886672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2669160 (or 2669154 counting only the distinct ones).

The product of its (nonzero) digits is 289013760, while the sum is 71.

The spelling of 15178480886672 in words is "fifteen trillion, one hundred seventy-eight billion, four hundred eighty million, eight hundred eighty-six thousand, six hundred seventy-two".