19973038275 has 72 divisors (see below), whose sum is σ = 36748647936. Its totient is φ = 10363507200.

The previous prime is 19973038249. The next prime is 19973038291. The reversal of 19973038275 is 57283037991.

19973038275 is a `hidden beast` number, since 199 + 7 + 3 + 0 + 382 + 75 = 666.

It is a Cunningham number, because it is equal to 141326²-1.

It is not a de Polignac number, because 19973038275 - 2⁷ = 19973038147 is a prime.

It is a super-2 number, since 2×19973038275² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 3530349 + ... + 3536001.

It is an arithmetic number, because the mean of its divisors is an integer number (510397888).

Almost surely, 2^19973038275 is an apocalyptic number.

19973038275 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

19973038275 is a deficient number, since it is larger than the sum of its proper divisors (16775609661).

19973038275 is a wasteful number, since it uses less digits than its factorization.

19973038275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6093 (or 6085 counting only the distinct ones).

The product of its (nonzero) digits is 2857680, while the sum is 54.

The spelling of 19973038275 in words is "nineteen billion, nine hundred seventy-three million, thirty-eight thousand, two hundred seventy-five".