62688131021 has 4 divisors (see below), whose sum is σ = 63443409792. Its totient is φ = 61932852252.

The previous prime is 62688130991. The next prime is 62688131027. The reversal of 62688131021 is 12013188626.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 62688131021 - 2¹⁴ = 62688114637 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 (62688131027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 377639261 + ... + 377639426.

It is an arithmetic number, because the mean of its divisors is an integer number (15860852448).

Almost surely, 2^62688131021 is an apocalyptic number.

It is an amenable number.

62688131021 is a deficient number, since it is larger than the sum of its proper divisors (755278771).

62688131021 is an equidigital number, since it uses as much as digits as its factorization.

62688131021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 755278770.

The product of its (nonzero) digits is 27648, while the sum is 38.

The spelling of 62688131021 in words is "sixty-two billion, six hundred eighty-eight million, one hundred thirty-one thousand, twenty-one".