612758372293 has 18 divisors (see below), whose sum is σ = 664657679826. Its totient is φ = 564818072544.

The previous prime is 612758372269. The next prime is 612758372311. The reversal of 612758372293 is 392273857216.

It can be written as a sum of positive squares in 3 ways, for example, as 498546142084 + 114212230209 = 706078^2 + 337953^2 .

It is a de Polignac number, because none of the positive numbers 2^k-612758372293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612758372263) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 125730 + ... + 1114147.

It is an arithmetic number, because the mean of its divisors is an integer number (36925426657).

Almost surely, 2^612758372293 is an apocalyptic number.

It is an amenable number.

612758372293 is a deficient number, since it is larger than the sum of its proper divisors (51899307533).

612758372293 is a wasteful number, since it uses less digits than its factorization.

612758372293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1239989 (or 1239933 counting only the distinct ones).

The product of its digits is 7620480, while the sum is 55.

The spelling of 612758372293 in words is "six hundred twelve billion, seven hundred fifty-eight million, three hundred seventy-two thousand, two hundred ninety-three".