1318688677634 has 8 divisors (see below), whose sum is σ = 1978328221308. Its totient is φ = 659245937200.

The previous prime is 1318688677601. The next prime is 1318688677651. The reversal of 1318688677634 is 4367768868131.

It can be written as a sum of positive squares in 2 ways, for example, as 1246002900025 + 72685777609 = 1116245^2 + 269603^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49184057 + ... + 49210860.

Almost surely, 2^{1318688677634} is an apocalyptic number.

1318688677634 is a deficient number, since it is larger than the sum of its proper divisors (659639543674).

1318688677634 is an equidigital number, since it uses as much as digits as its factorization.

1318688677634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98401620.

The product of its digits is 195084288, while the sum is 68.

The spelling of 1318688677634 in words is "one trillion, three hundred eighteen billion, six hundred eighty-eight million, six hundred seventy-seven thousand, six hundred thirty-four".