61812312711 has 32 divisors (see below), whose sum is σ = 89004303360. Its totient is φ = 38040651264.

The previous prime is 61812312671. The next prime is 61812312713. The reversal of 61812312711 is 11721321816.

It is not a de Polignac number, because 61812312711 - 2³³ = 53222378119 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61812312713) 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, 5791566 + ... + 5802228.

It is an arithmetic number, because the mean of its divisors is an integer number (2781384480).

Almost surely, 2^61812312711 is an apocalyptic number.

61812312711 is a deficient number, since it is larger than the sum of its proper divisors (27191990649).

61812312711 is a wasteful number, since it uses less digits than its factorization.

61812312711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13615.

The product of its digits is 4032, while the sum is 33.

The spelling of 61812312711 in words is "sixty-one billion, eight hundred twelve million, three hundred twelve thousand, seven hundred eleven".