19926877875 has 64 divisors (see below), whose sum is σ = 33940408320. Its totient is φ = 10378041600.

The previous prime is 19926877849. The next prime is 19926877939. The reversal of 19926877875 is 57877862991.

It is not a de Polignac number, because 19926877875 - 2⁵ = 19926877843 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10027632 + ... + 10029618.

It is an arithmetic number, because the mean of its divisors is an integer number (530318880).

Almost surely, 2^19926877875 is an apocalyptic number.

19926877875 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

19926877875 is a deficient number, since it is larger than the sum of its proper divisors (14013530445).

19926877875 is a wasteful number, since it uses less digits than its factorization.

19926877875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2621 (or 2611 counting only the distinct ones).

The product of its digits is 106686720, while the sum is 69.

The spelling of 19926877875 in words is "nineteen billion, nine hundred twenty-six million, eight hundred seventy-seven thousand, eight hundred seventy-five".