61388495060 has 24 divisors (see below), whose sum is σ = 131913884256. Its totient is φ = 23984341920.

The previous prime is 61388495057. The next prime is 61388495089. The reversal of 61388495060 is 6059488316.

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, 35690126 + ... + 35691845.

It is an arithmetic number, because the mean of its divisors is an integer number (5496411844).

Almost surely, 2^61388495060 is an apocalyptic number.

It is an amenable number.

61388495060 is an abundant number, since it is smaller than the sum of its proper divisors (70525389196).

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

61388495060 is a wasteful number, since it uses less digits than its factorization.

61388495060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71382023 (or 71382021 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 50.

The spelling of 61388495060 in words is "sixty-one billion, three hundred eighty-eight million, four hundred ninety-five thousand, sixty".