15318675540 has 72 divisors (see below), whose sum is σ = 53104746240. Its totient is φ = 3501411264.

The previous prime is 15318675527. The next prime is 15318675557. The reversal of 15318675540 is 4557681351.

15318675540 is a `hidden beast` number, since 1 + 5 + 31 + 8 + 6 + 75 + 540 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6077580 + ... + 6080099.

It is an arithmetic number, because the mean of its divisors is an integer number (737565920).

Almost surely, 2^15318675540 is an apocalyptic number.

15318675540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15318675540 is an abundant number, since it is smaller than the sum of its proper divisors (37786070700).

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

15318675540 is a wasteful number, since it uses less digits than its factorization.

15318675540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12157701 (or 12157696 counting only the distinct ones).

The product of its (nonzero) digits is 504000, while the sum is 45.

The spelling of 15318675540 in words is "fifteen billion, three hundred eighteen million, six hundred seventy-five thousand, five hundred forty".