61958641023 has 6 divisors (see below), whose sum is σ = 89495814824. Its totient is φ = 41305760676.

The previous prime is 61958641021. The next prime is 61958641051. The reversal of 61958641023 is 32014685916.

61958641023 is a `hidden beast` number, since 6 + 1 + 9 + 586 + 41 + 0 + 23 = 666.

It is not a de Polignac number, because 61958641023 - 2¹ = 61958641021 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61958641023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61958641021) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3442146715 + ... + 3442146732.

Almost surely, 2^61958641023 is an apocalyptic number.

61958641023 is a deficient number, since it is larger than the sum of its proper divisors (27537173801).

61958641023 is a wasteful number, since it uses less digits than its factorization.

61958641023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6884293453 (or 6884293450 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The spelling of 61958641023 in words is "sixty-one billion, nine hundred fifty-eight million, six hundred forty-one thousand, twenty-three".