61877763113688 has 48 divisors (see below), whose sum is σ = 167830975489320. Its totient is φ = 20595722015616.

The previous prime is 61877763113659. The next prime is 61877763113711. The reversal of 61877763113688 is 88631136777816.

61877763113688 is a `hidden beast` number, since 6 + 187 + 7 + 76 + 3 + 11 + 368 + 8 = 666.

It is a super-2 number, since 2×61877763113688² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 629096781 + ... + 629195132.

Almost surely, 2^{61877763113688} is an apocalyptic number.

It is an amenable number.

61877763113688 is an abundant number, since it is smaller than the sum of its proper divisors (105953212375632).

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

61877763113688 is a wasteful number, since it uses less digits than its factorization.

61877763113688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1258292608 (or 1258292601 counting only the distinct ones).

The product of its digits is 341397504, while the sum is 72.

The spelling of 61877763113688 in words is "sixty-one trillion, eight hundred seventy-seven billion, seven hundred sixty-three million, one hundred thirteen thousand, six hundred eighty-eight".