612364145056545 has 128 divisors (see below), whose sum is σ = 1149362700143616. Its totient is φ = 272614213287936.

The previous prime is 612364145056487. The next prime is 612364145056549. The reversal of 612364145056545 is 545650541463216.

It is not a de Polignac number, because 612364145056545 - 2¹⁰ = 612364145055521 is a prime.

It is a super-2 number, since 2×612364145056545² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (612364145056549) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 6051157887 + ... + 6051259083.

It is an arithmetic number, because the mean of its divisors is an integer number (8979396094872).

Almost surely, 2^{612364145056545} is an apocalyptic number.

It is an amenable number.

612364145056545 is a deficient number, since it is larger than the sum of its proper divisors (536998555087071).

612364145056545 is a wasteful number, since it uses less digits than its factorization.

612364145056545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109339.

The product of its (nonzero) digits is 51840000, while the sum is 57.

The spelling of 612364145056545 in words is "six hundred twelve trillion, three hundred sixty-four billion, one hundred forty-five million, fifty-six thousand, five hundred forty-five".