56721270132747 has 24 divisors (see below), whose sum is σ = 89379263121408. Its totient is φ = 34376415044400.

The previous prime is 56721270132727. The next prime is 56721270132757. The reversal of 56721270132747 is 74723107212765.

56721270132747 is a `hidden beast` number, since 5 + 6 + 7 + 2 + 1 + 270 + 1 + 327 + 47 = 666.

It is not a de Polignac number, because 56721270132747 - 2¹¹ = 56721270130699 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56721270132693 and 56721270132702.

It is not an unprimeable number, because it can be changed into a prime (56721270132727) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37418458 + ... + 38904800.

It is an arithmetic number, because the mean of its divisors is an integer number (3724135963392).

Almost surely, 2^{56721270132747} is an apocalyptic number.

56721270132747 is a deficient number, since it is larger than the sum of its proper divisors (32657992988661).

56721270132747 is a wasteful number, since it uses less digits than its factorization.

56721270132747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1871831 (or 1871828 counting only the distinct ones).

The product of its (nonzero) digits is 6914880, while the sum is 54.

The spelling of 56721270132747 in words is "fifty-six trillion, seven hundred twenty-one billion, two hundred seventy million, one hundred thirty-two thousand, seven hundred forty-seven".