62642389979 has 32 divisors (see below), whose sum is σ = 72973716480. Its totient is φ = 53310863232.

The previous prime is 62642389951. The next prime is 62642390009. The reversal of 62642389979 is 97998324626.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-62642389979 is a prime.

It is a super-2 number, since 2×62642389979² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (62642389949) 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, 1157282 + ... + 1210200.

It is an arithmetic number, because the mean of its divisors is an integer number (2280428640).

Almost surely, 2^62642389979 is an apocalyptic number.

62642389979 is a deficient number, since it is larger than the sum of its proper divisors (10331326501).

62642389979 is a wasteful number, since it uses less digits than its factorization.

62642389979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53099.

The product of its digits is 70543872, while the sum is 65.

The spelling of 62642389979 in words is "sixty-two billion, six hundred forty-two million, three hundred eighty-nine thousand, nine hundred seventy-nine".