3128797687942 has 8 divisors (see below), whose sum is σ = 4693215377232. Its totient is φ = 1564392562200.

The previous prime is 3128797687927. The next prime is 3128797687943. The reversal of 3128797687942 is 2497867978213.

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

It is a super-3 number, since 3×3128797687942³ (a number of 38 digits) contains 333 as substring.

It is a congruent number.

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 in 3 ways as a sum of consecutive naturals, for example, 2491434 + ... + 3530557.

It is an arithmetic number, because the mean of its divisors is an integer number (586651922154).

Almost surely, 2^{3128797687942} is an apocalyptic number.

3128797687942 is a deficient number, since it is larger than the sum of its proper divisors (1564417689290).

3128797687942 is a wasteful number, since it uses less digits than its factorization.

3128797687942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6281774.

The product of its digits is 512096256, while the sum is 73.

The spelling of 3128797687942 in words is "three trillion, one hundred twenty-eight billion, seven hundred ninety-seven million, six hundred eighty-seven thousand, nine hundred forty-two".