61679656311 has 32 divisors (see below), whose sum is σ = 103371491328. Its totient is φ = 31842097920.

The previous prime is 61679656307. The next prime is 61679656349. The reversal of 61679656311 is 11365697616.

It is not a de Polignac number, because 61679656311 - 2² = 61679656307 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61679256311) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2390710 + ... + 2416371.

It is an arithmetic number, because the mean of its divisors is an integer number (3230359104).

Almost surely, 2^61679656311 is an apocalyptic number.

61679656311 is a deficient number, since it is larger than the sum of its proper divisors (41691835017).

61679656311 is a wasteful number, since it uses less digits than its factorization.

61679656311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4807151.

The product of its digits is 1224720, while the sum is 51.

The spelling of 61679656311 in words is "sixty-one billion, six hundred seventy-nine million, six hundred fifty-six thousand, three hundred eleven".