613561488346855 has 16 divisors (see below), whose sum is σ = 760458110148864. Its totient is φ = 474744372791040.

The previous prime is 613561488346831. The next prime is 613561488346879. The reversal of 613561488346855 is 558643884165316.

It is an interprime number because it is at equal distance from previous prime (613561488346831) and next prime (613561488346879).

It is not a de Polignac number, because 613561488346855 - 2⁵ = 613561488346823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1128781684 + ... + 1129325113.

It is an arithmetic number, because the mean of its divisors is an integer number (47528631884304).

Almost surely, 2^{613561488346855} is an apocalyptic number.

613561488346855 is a deficient number, since it is larger than the sum of its proper divisors (146896621802009).

613561488346855 is a wasteful number, since it uses less digits than its factorization.

613561488346855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2258108586.

The product of its digits is 1990656000, while the sum is 73.

The spelling of 613561488346855 in words is "six hundred thirteen trillion, five hundred sixty-one billion, four hundred eighty-eight million, three hundred forty-six thousand, eight hundred fifty-five".