30687472736660 has 24 divisors (see below), whose sum is σ = 64444415484456. Its totient is φ = 12274851430400.

The previous prime is 30687472736579. The next prime is 30687472736783. The reversal of 30687472736660 is 6663727478603.

It can be written as a sum of positive squares in 4 ways, for example, as 3577560405136 + 27109912331524 = 1891444^2 + 5206718^2 .

It is a congruent number.

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, 6766541 + ... + 10351860.

It is an arithmetic number, because the mean of its divisors is an integer number (2685183978519).

Almost surely, 2^{30687472736660} is an apocalyptic number.

It is an amenable number.

30687472736660 is an abundant number, since it is smaller than the sum of its proper divisors (33756942747796).

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

30687472736660 is a wasteful number, since it uses less digits than its factorization.

30687472736660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17208043 (or 17208041 counting only the distinct ones).

The product of its (nonzero) digits is 256048128, while the sum is 65.

The spelling of 30687472736660 in words is "thirty trillion, six hundred eighty-seven billion, four hundred seventy-two million, seven hundred thirty-six thousand, six hundred sixty".