612660454013 has 4 divisors (see below), whose sum is σ = 629218844700. Its totient is φ = 596102063328.

The previous prime is 612660453983. The next prime is 612660454019. The reversal of 612660454013 is 310454066216.

612660454013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 297807044089 + 314853409924 = 545717^2 + 561118^2 .

It is a cyclic number.

It is not a de Polignac number, because 612660454013 - 2⁶ = 612660453949 is a prime.

It is a super-2 number, since 2×612660454013² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612660454019) 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, 8279195288 + ... + 8279195361.

It is an arithmetic number, because the mean of its divisors is an integer number (157304711175).

Almost surely, 2^612660454013 is an apocalyptic number.

It is an amenable number.

612660454013 is a deficient number, since it is larger than the sum of its proper divisors (16558390687).

612660454013 is a wasteful number, since it uses less digits than its factorization.

612660454013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16558390686.

The product of its (nonzero) digits is 103680, while the sum is 38.

The spelling of 612660454013 in words is "six hundred twelve billion, six hundred sixty million, four hundred fifty-four thousand, thirteen".