613400018364 has 72 divisors (see below), whose sum is σ = 1788605739648. Its totient is φ = 173619223200.

The previous prime is 613400018351. The next prime is 613400018423. The reversal of 613400018364 is 463810004316.

It is a happy number.

613400018364 is a `hidden beast` number, since 6 + 13 + 400 + 0 + 183 + 64 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11347462 + ... + 11401389.

It is an arithmetic number, because the mean of its divisors is an integer number (24841746384).

Almost surely, 2^613400018364 is an apocalyptic number.

It is an amenable number.

613400018364 is an abundant number, since it is smaller than the sum of its proper divisors (1175205721284).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

613400018364 is a wasteful number, since it uses less digits than its factorization.

613400018364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22748975 (or 22748970 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The spelling of 613400018364 in words is "six hundred thirteen billion, four hundred million, eighteen thousand, three hundred sixty-four".