3128797687948 has 6 divisors (see below), whose sum is σ = 5475395953916. Its totient is φ = 1564398843972.

The previous prime is 3128797687943. The next prime is 3128797687969. The reversal of 3128797687948 is 8497867978213.

It is not an unprimeable number, because it can be changed into a prime (3128797687943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 391099710990 + ... + 391099710997.

Almost surely, 2^{3128797687948} is an apocalyptic number.

It is an amenable number.

3128797687948 is a deficient number, since it is larger than the sum of its proper divisors (2346598265968).

3128797687948 is a wasteful number, since it uses less digits than its factorization.

3128797687948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 782199421991 (or 782199421989 counting only the distinct ones).

The product of its digits is 2048385024, while the sum is 79.

The spelling of 3128797687948 in words is "three trillion, one hundred twenty-eight billion, seven hundred ninety-seven million, six hundred eighty-seven thousand, nine hundred forty-eight".