19872976974 has 8 divisors (see below), whose sum is σ = 39745953960. Its totient is φ = 6624325656.

The previous prime is 19872976961. The next prime is 19872976979. The reversal of 19872976974 is 47967927891.

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

19872976974 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 19872976899 and 19872976908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19872976979) 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, 1656081409 + ... + 1656081420.

It is an arithmetic number, because the mean of its divisors is an integer number (4968244245).

Almost surely, 2^19872976974 is an apocalyptic number.

19872976974 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

19872976974 is a wasteful number, since it uses less digits than its factorization.

19872976974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3312162834.

The product of its digits is 96018048, while the sum is 69.

The spelling of 19872976974 in words is "nineteen billion, eight hundred seventy-two million, nine hundred seventy-six thousand, nine hundred seventy-four".