62688854021 has 2 divisors, whose sum is σ = 62688854022. Its totient is φ = 62688854020.

The previous prime is 62688854017. The next prime is 62688854029. The reversal of 62688854021 is 12045888626.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60214288996 + 2474565025 = 245386^2 + 49745^2 .

It is a cyclic number.

It is not a de Polignac number, because 62688854021 - 2² = 62688854017 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (62688854029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31344427010 + 31344427011.

It is an arithmetic number, because the mean of its divisors is an integer number (31344427011).

Almost surely, 2^62688854021 is an apocalyptic number.

It is an amenable number.

62688854021 is a deficient number, since it is larger than the sum of its proper divisors (1).

62688854021 is an equidigital number, since it uses as much as digits as its factorization.

62688854021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1474560, while the sum is 50.

The spelling of 62688854021 in words is "sixty-two billion, six hundred eighty-eight million, eight hundred fifty-four thousand, twenty-one".