19752089123 has 6 divisors (see below), whose sum is σ = 21388357044. Its totient is φ = 18232697496.

The previous prime is 19752089113. The next prime is 19752089153. The reversal of 19752089123 is 32198025791.

It is a happy number.

It is not a de Polignac number, because 19752089123 - 2⁴ = 19752089107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19752089113) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 58437965 + ... + 58438302.

It is an arithmetic number, because the mean of its divisors is an integer number (3564726174).

Almost surely, 2^19752089123 is an apocalyptic number.

19752089123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

19752089123 is a deficient number, since it is larger than the sum of its proper divisors (1636267921).

19752089123 is a wasteful number, since it uses less digits than its factorization.

19752089123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116876293 (or 116876280 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 47.

The spelling of 19752089123 in words is "nineteen billion, seven hundred fifty-two million, eighty-nine thousand, one hundred twenty-three".