612407344493 has 4 divisors (see below), whose sum is σ = 699894108000. Its totient is φ = 524920580988.

The previous prime is 612407344477. The next prime is 612407344529. The reversal of 612407344493 is 394443704216.

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 612407344493 - 2⁴ = 612407344477 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 (612407344093) 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, 43743381743 + ... + 43743381756.

It is an arithmetic number, because the mean of its divisors is an integer number (174973527000).

Almost surely, 2^612407344493 is an apocalyptic number.

It is an amenable number.

612407344493 is a deficient number, since it is larger than the sum of its proper divisors (87486763507).

612407344493 is an equidigital number, since it uses as much as digits as its factorization.

612407344493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87486763506.

The product of its (nonzero) digits is 1741824, while the sum is 47.

The spelling of 612407344493 in words is "six hundred twelve billion, four hundred seven million, three hundred forty-four thousand, four hundred ninety-three".