623212220512 has 24 divisors (see below), whose sum is σ = 1402227496656. Its totient is φ = 267090951552.

The previous prime is 623212220497. The next prime is 623212220557. The reversal of 623212220512 is 215022212326.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1391098483 + ... + 1391098930.

It is an arithmetic number, because the mean of its divisors is an integer number (58426145694).

Almost surely, 2^623212220512 is an apocalyptic number.

It is an amenable number.

623212220512 is an abundant number, since it is smaller than the sum of its proper divisors (779015276144).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

623212220512 is a wasteful number, since it uses less digits than its factorization.

623212220512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2782197430 (or 2782197422 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

Adding to 623212220512 its reverse (215022212326), we get a palindrome (838234432838).

The spelling of 623212220512 in words is "six hundred twenty-three billion, two hundred twelve million, two hundred twenty thousand, five hundred twelve".