2819874943972 has 6 divisors (see below), whose sum is σ = 4934781151958. Its totient is φ = 1409937471984.

The previous prime is 2819874943943. The next prime is 2819874943979. The reversal of 2819874943972 is 2793494789182.

It can be written as a sum of positive squares in only one way, i.e., 2800080142336 + 19794801636 = 1673344^2 + 140694^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2819874943895 and 2819874943904.

It is not an unprimeable number, because it can be changed into a prime (2819874943979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 352484367993 + ... + 352484368000.

Almost surely, 2^{2819874943972} is an apocalyptic number.

It is an amenable number.

2819874943972 is a deficient number, since it is larger than the sum of its proper divisors (2114906207986).

2819874943972 is a wasteful number, since it uses less digits than its factorization.

2819874943972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 704968735997 (or 704968735995 counting only the distinct ones).

The product of its digits is 438939648, while the sum is 73.

The spelling of 2819874943972 in words is "two trillion, eight hundred nineteen billion, eight hundred seventy-four million, nine hundred forty-three thousand, nine hundred seventy-two".