19801075475 has 24 divisors (see below), whose sum is σ = 25945244160. Its totient is φ = 14960293920.

The previous prime is 19801075451. The next prime is 19801075519. The reversal of 19801075475 is 57457010891.

It is not a de Polignac number, because 19801075475 - 2⁸ = 19801075219 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 172529 + ... + 263378.

It is an arithmetic number, because the mean of its divisors is an integer number (1081051840).

Almost surely, 2^19801075475 is an apocalyptic number.

19801075475 is a deficient number, since it is larger than the sum of its proper divisors (6144168685).

19801075475 is a wasteful number, since it uses less digits than its factorization.

19801075475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436019 (or 436014 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 47.

The spelling of 19801075475 in words is "nineteen billion, eight hundred one million, seventy-five thousand, four hundred seventy-five".