612157879461 has 16 divisors (see below), whose sum is σ = 852478228800. Its totient is φ = 390345285888.

The previous prime is 612157879283. The next prime is 612157879507. The reversal of 612157879461 is 164978751216.

It is not a de Polignac number, because 612157879461 - 2¹¹ = 612157877413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612157879061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46730196 + ... + 46743293.

It is an arithmetic number, because the mean of its divisors is an integer number (53279889300).

Almost surely, 2^612157879461 is an apocalyptic number.

It is an amenable number.

612157879461 is a deficient number, since it is larger than the sum of its proper divisors (240320349339).

612157879461 is a wasteful number, since it uses less digits than its factorization.

612157879461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93473588.

The product of its digits is 5080320, while the sum is 57.

The spelling of 612157879461 in words is "six hundred twelve billion, one hundred fifty-seven million, eight hundred seventy-nine thousand, four hundred sixty-one".