540974839572 has 18 divisors (see below), whose sum is σ = 1367464177898. Its totient is φ = 180324946512.

The previous prime is 540974839567. The next prime is 540974839621. The reversal of 540974839572 is 275938479045.

540974839572 is a `hidden beast` number, since 5 + 409 + 74 + 8 + 3 + 95 + 72 = 666.

It can be written as a sum of positive squares in only one way, i.e., 439044060816 + 101930778756 = 662604^2 + 319266^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×540974839572² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7513539403 + ... + 7513539474.

Almost surely, 2^540974839572 is an apocalyptic number.

It is an amenable number.

540974839572 is an abundant number, since it is smaller than the sum of its proper divisors (826489338326).

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

540974839572 is a wasteful number, since it uses less digits than its factorization.

540974839572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15027078887 (or 15027078882 counting only the distinct ones).

The product of its (nonzero) digits is 76204800, while the sum is 63.

The spelling of 540974839572 in words is "five hundred forty billion, nine hundred seventy-four million, eight hundred thirty-nine thousand, five hundred seventy-two".