61396386568 has 16 divisors (see below), whose sum is σ = 125583518160. Its totient is φ = 27907448400.

The previous prime is 61396386551. The next prime is 61396386587. The reversal of 61396386568 is 86568369316.

It is a happy number.

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 3 ways as a sum of consecutive naturals, for example, 348843018 + ... + 348843193.

It is an arithmetic number, because the mean of its divisors is an integer number (7848969885).

Almost surely, 2^61396386568 is an apocalyptic number.

It is an amenable number.

61396386568 is an abundant number, since it is smaller than the sum of its proper divisors (64187131592).

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

61396386568 is a wasteful number, since it uses less digits than its factorization.

61396386568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 697686228 (or 697686224 counting only the distinct ones).

The product of its digits is 33592320, while the sum is 61.

The spelling of 61396386568 in words is "sixty-one billion, three hundred ninety-six million, three hundred eighty-six thousand, five hundred sixty-eight".