306631426212 has 72 divisors (see below), whose sum is σ = 787936872632. Its totient is φ = 100517760000.

The previous prime is 306631426201. The next prime is 306631426219. The reversal of 306631426212 is 212624136603.

306631426212 is a `hidden beast` number, since 3 + 0 + 6 + 631 + 4 + 2 + 6 + 2 + 12 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 41606208576 + 265025217636 = 203976^2 + 514806^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (306631426219) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23053548 + ... + 23066844.

Almost surely, 2^306631426212 is an apocalyptic number.

It is an amenable number.

306631426212 is an abundant number, since it is smaller than the sum of its proper divisors (481305446420).

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

306631426212 is a wasteful number, since it uses less digits than its factorization.

306631426212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23869 (or 23864 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The spelling of 306631426212 in words is "three hundred six billion, six hundred thirty-one million, four hundred twenty-six thousand, two hundred twelve".