612407344631 has 4 divisors (see below), whose sum is σ = 614049187752. Its totient is φ = 610765501512.

The previous prime is 612407344621. The next prime is 612407344651. The reversal of 612407344631 is 136443704216.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-612407344631 is a prime.

It is a super-3 number, since 3×612407344631³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612407344621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 820921001 + ... + 820921746.

It is an arithmetic number, because the mean of its divisors is an integer number (153512296938).

Almost surely, 2^612407344631 is an apocalyptic number.

612407344631 is a deficient number, since it is larger than the sum of its proper divisors (1641843121).

612407344631 is a wasteful number, since it uses less digits than its factorization.

612407344631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1641843120.

The product of its (nonzero) digits is 290304, while the sum is 41.

The spelling of 612407344631 in words is "six hundred twelve billion, four hundred seven million, three hundred forty-four thousand, six hundred thirty-one".