618312164377 has 16 divisors (see below), whose sum is σ = 642279152592. Its totient is φ = 594773729280.

The previous prime is 618312164339. The next prime is 618312164381. The reversal of 618312164377 is 773461213816.

It can be written as a sum of positive squares in 8 ways, for example, as 10935094041 + 607377070336 = 104571^2 + 779344^2 .

It is a cyclic number.

It is not a de Polignac number, because 618312164377 - 2¹⁵ = 618312131609 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 618312164377.

It is not an unprimeable number, because it can be changed into a prime (618312174377) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9596373 + ... + 9660589.

It is an arithmetic number, because the mean of its divisors is an integer number (40142447037).

Almost surely, 2^618312164377 is an apocalyptic number.

It is an amenable number.

618312164377 is a deficient number, since it is larger than the sum of its proper divisors (23966988215).

618312164377 is a wasteful number, since it uses less digits than its factorization.

618312164377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67548.

The product of its digits is 1016064, while the sum is 49.

The spelling of 618312164377 in words is "six hundred eighteen billion, three hundred twelve million, one hundred sixty-four thousand, three hundred seventy-seven".