61299844100 has 36 divisors (see below), whose sum is σ = 145113451728. Its totient is φ = 22290852000.

The previous prime is 61299844063. The next prime is 61299844157. The reversal of 61299844100 is 144899216.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27862466 + ... + 27864665.

Almost surely, 2^61299844100 is an apocalyptic number.

It is an amenable number.

61299844100 is an abundant number, since it is smaller than the sum of its proper divisors (83813607628).

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

61299844100 is a wasteful number, since it uses less digits than its factorization.

61299844100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55727156 (or 55727149 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 44.

The spelling of 61299844100 in words is "sixty-one billion, two hundred ninety-nine million, eight hundred forty-four thousand, one hundred".