61596863676 has 18 divisors (see below), whose sum is σ = 155703183272. Its totient is φ = 20532287880.

The previous prime is 61596863651. The next prime is 61596863717. The reversal of 61596863676 is 67636869516.

It is a happy number.

61596863676 is a `hidden beast` number, since 6 + 1 + 596 + 8 + 6 + 36 + 7 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×61596863676² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 855511960 + ... + 855512031.

Almost surely, 2^61596863676 is an apocalyptic number.

It is an amenable number.

61596863676 is an abundant number, since it is smaller than the sum of its proper divisors (94106319596).

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

61596863676 is a wasteful number, since it uses less digits than its factorization.

61596863676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1711024001 (or 1711023996 counting only the distinct ones).

The product of its digits is 58786560, while the sum is 63.

The spelling of 61596863676 in words is "sixty-one billion, five hundred ninety-six million, eight hundred sixty-three thousand, six hundred seventy-six".