626872049929 has 2 divisors, whose sum is σ = 626872049930. Its totient is φ = 626872049928.

The previous prime is 626872049927. The next prime is 626872049971. The reversal of 626872049929 is 929940278626.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 587001145600 + 39870904329 = 766160^2 + 199677^2 .

It is a cyclic number.

It is not a de Polignac number, because 626872049929 - 2¹ = 626872049927 is a prime.

Together with 626872049927, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (626872049927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 313436024964 + 313436024965.

It is an arithmetic number, because the mean of its divisors is an integer number (313436024965).

Almost surely, 2^626872049929 is an apocalyptic number.

It is an amenable number.

626872049929 is a deficient number, since it is larger than the sum of its proper divisors (1).

626872049929 is an equidigital number, since it uses as much as digits as its factorization.

626872049929 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47029248, while the sum is 64.

The spelling of 626872049929 in words is "six hundred twenty-six billion, eight hundred seventy-two million, forty-nine thousand, nine hundred twenty-nine".