1974851271172 has 24 divisors (see below), whose sum is σ = 3917721147200. Its totient is φ = 863497721376.

The previous prime is 1974851271163. The next prime is 1974851271221. The reversal of 1974851271172 is 2711721584791.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 999417672 + ... + 999419647.

Almost surely, 2^{1974851271172} is an apocalyptic number.

It is an amenable number.

1974851271172 is a deficient number, since it is larger than the sum of its proper divisors (1942869876028).

1974851271172 is a wasteful number, since it uses less digits than its factorization.

1974851271172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1998837355 (or 1998837353 counting only the distinct ones).

The product of its digits is 1975680, while the sum is 55.

The spelling of 1974851271172 in words is "one trillion, nine hundred seventy-four billion, eight hundred fifty-one million, two hundred seventy-one thousand, one hundred seventy-two".