18746999039 has 8 divisors (see below), whose sum is σ = 19566589392. Its totient is φ = 17944663360.

The previous prime is 18746998973. The next prime is 18746999041. The reversal of 18746999039 is 93099964781.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18746999039 - 2²⁰ = 18745950463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18746999099) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4311449 + ... + 4315794.

It is an arithmetic number, because the mean of its divisors is an integer number (2445823674).

Almost surely, 2^18746999039 is an apocalyptic number.

18746999039 is a deficient number, since it is larger than the sum of its proper divisors (819590353).

18746999039 is an equidigital number, since it uses as much as digits as its factorization.

18746999039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8627337.

The product of its (nonzero) digits is 26453952, while the sum is 65.

The spelling of 18746999039 in words is "eighteen billion, seven hundred forty-six million, nine hundred ninety-nine thousand, thirty-nine".