612473075656 has 32 divisors (see below), whose sum is σ = 1236902599800. Its totient is φ = 282639168000.

The previous prime is 612473075647. The next prime is 612473075671. The reversal of 612473075656 is 656570374216.

It can be written as a sum of positive squares in 4 ways, for example, as 173500573156 + 438972502500 = 416534^2 + 662550^2 .

It is a Harshad number since it is a multiple of its sum of digits (52).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 307510 + ... + 1148698.

Almost surely, 2^612473075656 is an apocalyptic number.

It is an amenable number.

612473075656 is an abundant number, since it is smaller than the sum of its proper divisors (624429524144).

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

612473075656 is a wasteful number, since it uses less digits than its factorization.

612473075656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 848209 (or 848205 counting only the distinct ones).

The product of its (nonzero) digits is 6350400, while the sum is 52.

The spelling of 612473075656 in words is "six hundred twelve billion, four hundred seventy-three million, seventy-five thousand, six hundred fifty-six".