1974145871776 has 96 divisors (see below), whose sum is σ = 4547987136000. Its totient is φ = 835344368640.

The previous prime is 1974145871759. The next prime is 1974145871783. The reversal of 1974145871776 is 6771785414791.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3783451 + ... + 4273498.

It is an arithmetic number, because the mean of its divisors is an integer number (47374866000).

Almost surely, 2^{1974145871776} is an apocalyptic number.

1974145871776 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1974145871776 is an abundant number, since it is smaller than the sum of its proper divisors (2573841264224).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1974145871776 is a wasteful number, since it uses less digits than its factorization.

1974145871776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8057022 (or 8057014 counting only the distinct ones).

The product of its digits is 82978560, while the sum is 67.

The spelling of 1974145871776 in words is "one trillion, nine hundred seventy-four billion, one hundred forty-five million, eight hundred seventy-one thousand, seven hundred seventy-six".