212361523928 has 128 divisors (see below), whose sum is σ = 446427072000. Its totient is φ = 94240143360.

The previous prime is 212361523903. The next prime is 212361523937. The reversal of 212361523928 is 829325163212.

It is a Cunningham number, because it is equal to 460827²-1.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42393488 + ... + 42398496.

It is an arithmetic number, because the mean of its divisors is an integer number (3487711500).

Almost surely, 2^212361523928 is an apocalyptic number.

It is an amenable number.

212361523928 is an abundant number, since it is smaller than the sum of its proper divisors (234065548072).

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

212361523928 is a wasteful number, since it uses less digits than its factorization.

212361523928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5305 (or 5301 counting only the distinct ones).

The product of its digits is 311040, while the sum is 44.

The spelling of 212361523928 in words is "two hundred twelve billion, three hundred sixty-one million, five hundred twenty-three thousand, nine hundred twenty-eight".