61755412677 has 16 divisors (see below), whose sum is σ = 94268308992. Its totient is φ = 35226998640.

The previous prime is 61755412633. The next prime is 61755412679. The reversal of 61755412677 is 77621455716.

It is a happy number.

It is not a de Polignac number, because 61755412677 - 2⁶ = 61755412613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61755412679) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2563083 + ... + 2587064.

It is an arithmetic number, because the mean of its divisors is an integer number (5891769312).

Almost surely, 2^61755412677 is an apocalyptic number.

It is an amenable number.

61755412677 is a deficient number, since it is larger than the sum of its proper divisors (32512896315).

61755412677 is a wasteful number, since it uses less digits than its factorization.

61755412677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5150728.

The product of its digits is 2469600, while the sum is 51.

The spelling of 61755412677 in words is "sixty-one billion, seven hundred fifty-five million, four hundred twelve thousand, six hundred seventy-seven".