15288775140 has 24 divisors (see below), whose sum is σ = 42808570560. Its totient is φ = 4077006688.

The previous prime is 15288775133. The next prime is 15288775157. The reversal of 15288775140 is 4157788251.

It is a self number, because there is not a number n which added to its sum of digits gives 15288775140.

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, 127406400 + ... + 127406519.

It is an arithmetic number, because the mean of its divisors is an integer number (1783690440).

Almost surely, 2^15288775140 is an apocalyptic number.

15288775140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15288775140 is an abundant number, since it is smaller than the sum of its proper divisors (27519795420).

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

15288775140 is a wasteful number, since it uses less digits than its factorization.

15288775140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254812931 (or 254812929 counting only the distinct ones).

The product of its (nonzero) digits is 627200, while the sum is 48.

The spelling of 15288775140 in words is "fifteen billion, two hundred eighty-eight million, seven hundred seventy-five thousand, one hundred forty".