3128797687943 has 2 divisors, whose sum is σ = 3128797687944. Its totient is φ = 3128797687942.

The previous prime is 3128797687927. The next prime is 3128797687969. The reversal of 3128797687943 is 3497867978213.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3128797687943 - 2⁴ = 3128797687927 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3128797681943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1564398843971 + 1564398843972.

It is an arithmetic number, because the mean of its divisors is an integer number (1564398843972).

Almost surely, 2^{3128797687943} is an apocalyptic number.

3128797687943 is a deficient number, since it is larger than the sum of its proper divisors (1).

3128797687943 is an equidigital number, since it uses as much as digits as its factorization.

3128797687943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 768144384, while the sum is 74.

The spelling of 3128797687943 in words is "three trillion, one hundred twenty-eight billion, seven hundred ninety-seven million, six hundred eighty-seven thousand, nine hundred forty-three".