61672388830 has 64 divisors (see below), whose sum is σ = 125437673088. Its totient is φ = 21660756480.

The previous prime is 61672388801. The next prime is 61672388849. The reversal of 61672388830 is 3888327616.

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 484212 + ... + 598168.

It is an arithmetic number, because the mean of its divisors is an integer number (1959963642).

Almost surely, 2^61672388830 is an apocalyptic number.

61672388830 is an abundant number, since it is smaller than the sum of its proper divisors (63765284258).

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

61672388830 is a wasteful number, since it uses less digits than its factorization.

61672388830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114181.

The product of its (nonzero) digits is 2322432, while the sum is 52.

The spelling of 61672388830 in words is "sixty-one billion, six hundred seventy-two million, three hundred eighty-eight thousand, eight hundred thirty".