612462270921 has 4 divisors (see below), whose sum is σ = 816616361232. Its totient is φ = 408308180612.

The previous prime is 612462270881. The next prime is 612462270923. The reversal of 612462270921 is 129072264216.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 612462270921 - 2³⁷ = 475023317449 is a prime.

It is a super-2 number, since 2×612462270921² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (612462270923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102077045151 + ... + 102077045156.

It is an arithmetic number, because the mean of its divisors is an integer number (204154090308).

Almost surely, 2^612462270921 is an apocalyptic number.

It is an amenable number.

612462270921 is a deficient number, since it is larger than the sum of its proper divisors (204154090311).

612462270921 is a wasteful number, since it uses less digits than its factorization.

612462270921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204154090310.

The product of its (nonzero) digits is 145152, while the sum is 42.

The spelling of 612462270921 in words is "six hundred twelve billion, four hundred sixty-two million, two hundred seventy thousand, nine hundred twenty-one".