3128797687955 has 12 divisors (see below), whose sum is σ = 3924896309040. Its totient is φ = 2394210402672.

The previous prime is 3128797687943. The next prime is 3128797687969. The reversal of 3128797687955 is 5597867978213.

It is not a de Polignac number, because 3128797687955 - 2⁶ = 3128797687891 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 591452495 + ... + 591457784.

It is an arithmetic number, because the mean of its divisors is an integer number (327074692420).

Almost surely, 2^{3128797687955} is an apocalyptic number.

3128797687955 is a deficient number, since it is larger than the sum of its proper divisors (796098621085).

3128797687955 is a wasteful number, since it uses less digits than its factorization.

3128797687955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1182910330 (or 1182910307 counting only the distinct ones).

The product of its digits is 1600300800, while the sum is 77.

The spelling of 3128797687955 in words is "three trillion, one hundred twenty-eight billion, seven hundred ninety-seven million, six hundred eighty-seven thousand, nine hundred fifty-five".