612631453366340 has 48 divisors (see below), whose sum is σ = 1313643513798000. Its totient is φ = 239907409697280.

The previous prime is 612631453366327. The next prime is 612631453366357. The reversal of 612631453366340 is 43663354136216.

It can be written as a sum of positive squares in 8 ways, for example, as 40874873075716 + 571756580290624 = 6393346^2 + 23911432^2 .

It is a Harshad number since it is a multiple of its sum of digits (53).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 626359715 + ... + 627337034.

It is an arithmetic number, because the mean of its divisors is an integer number (27367573204125).

Almost surely, 2^{612631453366340} is an apocalyptic number.

It is an amenable number.

612631453366340 is an abundant number, since it is smaller than the sum of its proper divisors (701012060431660).

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

612631453366340 is a wasteful number, since it uses less digits than its factorization.

612631453366340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1253697272 (or 1253697270 counting only the distinct ones).

The product of its (nonzero) digits is 16796160, while the sum is 53.

The spelling of 612631453366340 in words is "six hundred twelve trillion, six hundred thirty-one billion, four hundred fifty-three million, three hundred sixty-six thousand, three hundred forty".