61872240956 has 24 divisors (see below), whose sum is σ = 108641638560. Its totient is φ = 30831901632.

The previous prime is 61872240931. The next prime is 61872240977. The reversal of 61872240956 is 65904227816.

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, 2012210 + ... + 2042726.

It is an arithmetic number, because the mean of its divisors is an integer number (4526734940).

Almost surely, 2^61872240956 is an apocalyptic number.

It is an amenable number.

61872240956 is a deficient number, since it is larger than the sum of its proper divisors (46769397604).

61872240956 is a wasteful number, since it uses less digits than its factorization.

61872240956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32213 (or 32211 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 50.

The spelling of 61872240956 in words is "sixty-one billion, eight hundred seventy-two million, two hundred forty thousand, nine hundred fifty-six".