18725377313 has 8 divisors (see below), whose sum is σ = 19228569888. Its totient is φ = 18225262944.

The previous prime is 18725377309. The next prime is 18725377327. The reversal of 18725377313 is 31377352781.

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 18725377313 - 2² = 18725377309 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18725377303) 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, 757220 + ... + 781557.

It is an arithmetic number, because the mean of its divisors is an integer number (2403571236).

Almost surely, 2^18725377313 is an apocalyptic number.

It is an amenable number.

18725377313 is a deficient number, since it is larger than the sum of its proper divisors (503192575).

18725377313 is a wasteful number, since it uses less digits than its factorization.

18725377313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1539103.

The product of its digits is 740880, while the sum is 47.

The spelling of 18725377313 in words is "eighteen billion, seven hundred twenty-five million, three hundred seventy-seven thousand, three hundred thirteen".