61397679316 has 6 divisors (see below), whose sum is σ = 107445938810. Its totient is φ = 30698839656.

The previous prime is 61397679307. The next prime is 61397679377.

61397679316 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in only one way, i.e., 60296766916 + 1100912400 = 245554^2 + 33180^2 .

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 as a sum of consecutive naturals, namely, 7674709911 + ... + 7674709918.

Almost surely, 2^61397679316 is an apocalyptic number.

It is an amenable number.

61397679316 is a deficient number, since it is larger than the sum of its proper divisors (46048259494).

61397679316 is a wasteful number, since it uses less digits than its factorization.

61397679316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15349419833 (or 15349419831 counting only the distinct ones).

The product of its digits is 7715736, while the sum is 58.

The spelling of 61397679316 in words is "sixty-one billion, three hundred ninety-seven million, six hundred seventy-nine thousand, three hundred sixteen".