18928206392 has 16 divisors (see below), whose sum is σ = 35491917960. Its totient is φ = 9463694944.

The previous prime is 18928206383. The next prime is 18928206397. The reversal of 18928206392 is 29360282981.

It is a self number, because there is not a number n which added to its sum of digits gives 18928206392.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18928206397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 251543 + ... + 318009.

Almost surely, 2^18928206392 is an apocalyptic number.

It is an amenable number.

18928206392 is a deficient number, since it is larger than the sum of its proper divisors (16563711568).

18928206392 is a wasteful number, since it uses less digits than its factorization.

18928206392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102070 (or 102066 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 50.

The spelling of 18928206392 in words is "eighteen billion, nine hundred twenty-eight million, two hundred six thousand, three hundred ninety-two".