61672072600 has 24 divisors (see below), whose sum is σ = 143387569260. Its totient is φ = 24668828960.

The previous prime is 61672072573. The next prime is 61672072633. The reversal of 61672072600 is 627027616.

It is a self number, because there is not a number n which added to its sum of digits gives 61672072600.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 154179982 + ... + 154180381.

Almost surely, 2^61672072600 is an apocalyptic number.

It is an amenable number.

61672072600 is an abundant number, since it is smaller than the sum of its proper divisors (81715496660).

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

61672072600 is a wasteful number, since it uses less digits than its factorization.

61672072600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308360379 (or 308360370 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 37.

The spelling of 61672072600 in words is "sixty-one billion, six hundred seventy-two million, seventy-two thousand, six hundred".