612613399834 has 4 divisors (see below), whose sum is σ = 918920099754. Its totient is φ = 306306699916.

The previous prime is 612613399687. The next prime is 612613399837. The reversal of 612613399834 is 438993316216.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 572572189225 + 40041210609 = 756685^2 + 200103^2 .

It is not an unprimeable number, because it can be changed into a prime (612613399837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 153153349957 + ... + 153153349960.

Almost surely, 2^612613399834 is an apocalyptic number.

612613399834 is a deficient number, since it is larger than the sum of its proper divisors (306306699920).

612613399834 is a wasteful number, since it uses less digits than its factorization.

612613399834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306306699919.

The product of its digits is 5038848, while the sum is 55.

The spelling of 612613399834 in words is "six hundred twelve billion, six hundred thirteen million, three hundred ninety-nine thousand, eight hundred thirty-four".