612478319833 has 2 divisors, whose sum is σ = 612478319834. Its totient is φ = 612478319832.

The previous prime is 612478319807. The next prime is 612478319909. The reversal of 612478319833 is 338913874216.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 611794601929 + 683717904 = 782173^2 + 26148^2 .

It is a cyclic number.

It is not a de Polignac number, because 612478319833 - 2²¹ = 612476222681 is a prime.

It is a super-2 number, since 2×612478319833² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (612478310833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306239159916 + 306239159917.

It is an arithmetic number, because the mean of its divisors is an integer number (306239159917).

Almost surely, 2^612478319833 is an apocalyptic number.

It is an amenable number.

612478319833 is a deficient number, since it is larger than the sum of its proper divisors (1).

612478319833 is an equidigital number, since it uses as much as digits as its factorization.

612478319833 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5225472, while the sum is 55.

The spelling of 612478319833 in words is "six hundred twelve billion, four hundred seventy-eight million, three hundred nineteen thousand, eight hundred thirty-three".