612734559397 has 2 divisors, whose sum is σ = 612734559398. Its totient is φ = 612734559396.

The previous prime is 612734559329. The next prime is 612734559421. The reversal of 612734559397 is 793955437216.

612734559397 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 439557066081 + 173177493316 = 662991^2 + 416146^2 .

It is a cyclic number.

It is not a de Polignac number, because 612734559397 - 2³⁵ = 578374821029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (612734559497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306367279698 + 306367279699.

It is an arithmetic number, because the mean of its divisors is an integer number (306367279699).

Almost surely, 2^612734559397 is an apocalyptic number.

It is an amenable number.

612734559397 is a deficient number, since it is larger than the sum of its proper divisors (1).

612734559397 is an equidigital number, since it uses as much as digits as its factorization.

612734559397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 42865200, while the sum is 61.

The spelling of 612734559397 in words is "six hundred twelve billion, seven hundred thirty-four million, five hundred fifty-nine thousand, three hundred ninety-seven".