15494798872 has 16 divisors (see below), whose sum is σ = 33203140560. Its totient is φ = 6640628064.

The previous prime is 15494798867. The next prime is 15494798933. The reversal of 15494798872 is 27889749451.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138346363 + ... + 138346474.

It is an arithmetic number, because the mean of its divisors is an integer number (2075196285).

Almost surely, 2^15494798872 is an apocalyptic number.

It is an amenable number.

15494798872 is an abundant number, since it is smaller than the sum of its proper divisors (17708341688).

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

15494798872 is a wasteful number, since it uses less digits than its factorization.

15494798872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276692850 (or 276692846 counting only the distinct ones).

The product of its digits is 40642560, while the sum is 64.

The spelling of 15494798872 in words is "fifteen billion, four hundred ninety-four million, seven hundred ninety-eight thousand, eight hundred seventy-two".