61713020751 has 8 divisors (see below), whose sum is σ = 83012205360. Its totient is φ = 40777924992.

The previous prime is 61713020711. The next prime is 61713020767. The reversal of 61713020751 is 15702031716.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 61713020751 - 2²² = 61708826447 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61713020711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91021816 + ... + 91022493.

It is an arithmetic number, because the mean of its divisors is an integer number (10376525670).

Almost surely, 2^61713020751 is an apocalyptic number.

61713020751 is a deficient number, since it is larger than the sum of its proper divisors (21299184609).

61713020751 is a wasteful number, since it uses less digits than its factorization.

61713020751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182044425.

The product of its (nonzero) digits is 8820, while the sum is 33.

The spelling of 61713020751 in words is "sixty-one billion, seven hundred thirteen million, twenty thousand, seven hundred fifty-one".