68372500212 has 18 divisors (see below), whose sum is σ = 172830486738. Its totient is φ = 22790833392.

The previous prime is 68372500181. The next prime is 68372500253. The reversal of 68372500212 is 21200527386.

68372500212 is a `hidden beast` number, since 6 + 83 + 72 + 500 + 2 + 1 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 56570719716 + 11801780496 = 237846^2 + 108636^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1899236117 = 68372500212 / (6 + 8 + 3 + 7 + 2 + 5 + 0 + 0 + 2 + 1 + 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 949618023 + ... + 949618094.

Almost surely, 2^68372500212 is an apocalyptic number.

It is an amenable number.

68372500212 is an abundant number, since it is smaller than the sum of its proper divisors (104457986526).

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

68372500212 is a wasteful number, since it uses less digits than its factorization.

68372500212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1899236127 (or 1899236122 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The spelling of 68372500212 in words is "sixty-eight billion, three hundred seventy-two million, five hundred thousand, two hundred twelve".