61716710077 has 8 divisors (see below), whose sum is σ = 68759816832. Its totient is φ = 54912352800.

The previous prime is 61716710023. The next prime is 61716710123. The reversal of 61716710077 is 77001761716.

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

It is a cyclic number.

It is not a de Polignac number, because 61716710077 - 2¹⁹ = 61716185789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61716710017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59686824 + ... + 59687857.

It is an arithmetic number, because the mean of its divisors is an integer number (8594977104).

Almost surely, 2^61716710077 is an apocalyptic number.

It is an amenable number.

61716710077 is a deficient number, since it is larger than the sum of its proper divisors (7043106755).

61716710077 is a wasteful number, since it uses less digits than its factorization.

61716710077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119374739.

The product of its (nonzero) digits is 86436, while the sum is 43.

The spelling of 61716710077 in words is "sixty-one billion, seven hundred sixteen million, seven hundred ten thousand, seventy-seven".