623775247922 has 6 divisors (see below), whose sum is σ = 935664547293. Its totient is φ = 311887065492.

The previous prime is 623775247913. The next prime is 623775247967. The reversal of 623775247922 is 229742577326.

It can be written as a sum of positive squares in 2 ways, for example, as 623769823681 + 5424241 = 789791^2 + 2329^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=558469.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 837704 + ... + 1396172.

Almost surely, 2^623775247922 is an apocalyptic number.

623775247922 is a deficient number, since it is larger than the sum of its proper divisors (311889299371).

623775247922 is an frugal number, since it uses more digits than its factorization.

623775247922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1116940 (or 558471 counting only the distinct ones).

The product of its digits is 17781120, while the sum is 56.

The spelling of 623775247922 in words is "six hundred twenty-three billion, seven hundred seventy-five million, two hundred forty-seven thousand, nine hundred twenty-two".