626972923409 has 8 divisors (see below), whose sum is σ = 727235118528. Its totient is φ = 529384386960.

The previous prime is 626972923393. The next prime is 626972923459. The reversal of 626972923409 is 904329279626.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 626972923409 - 2⁴ = 626972923393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (626972923459) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 668414162 + ... + 668415099.

It is an arithmetic number, because the mean of its divisors is an integer number (90904389816).

Almost surely, 2^626972923409 is an apocalyptic number.

It is an amenable number.

626972923409 is a deficient number, since it is larger than the sum of its proper divisors (100262195119).

626972923409 is a wasteful number, since it uses less digits than its factorization.

626972923409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1336829335.

The product of its (nonzero) digits is 17635968, while the sum is 59.

The spelling of 626972923409 in words is "six hundred twenty-six billion, nine hundred seventy-two million, nine hundred twenty-three thousand, four hundred nine".