61077576172 has 6 divisors (see below), whose sum is σ = 106885758308. Its totient is φ = 30538788084.

The previous prime is 61077576151. The next prime is 61077576181. The reversal of 61077576172 is 27167577016.

61077576172 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×61077576172² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7634697018 + ... + 7634697025.

Almost surely, 2^61077576172 is an apocalyptic number.

It is an amenable number.

61077576172 is a deficient number, since it is larger than the sum of its proper divisors (45808182136).

61077576172 is a wasteful number, since it uses less digits than its factorization.

61077576172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15269394047 (or 15269394045 counting only the distinct ones).

The product of its (nonzero) digits is 864360, while the sum is 49.

The spelling of 61077576172 in words is "sixty-one billion, seventy-seven million, five hundred seventy-six thousand, one hundred seventy-two".