18980802313 has 8 divisors (see below), whose sum is σ = 20785064256. Its totient is φ = 17189662800.

The previous prime is 18980802293. The next prime is 18980802353. The reversal of 18980802313 is 31320808981.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18980802313 is a prime.

It is a super-2 number, since 2×18980802313² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 18980802313.

It is not an unprimeable number, because it can be changed into a prime (18980802353) 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, 3277578 + ... + 3283363.

It is an arithmetic number, because the mean of its divisors is an integer number (2598133032).

Almost surely, 2^18980802313 is an apocalyptic number.

It is an amenable number.

18980802313 is a deficient number, since it is larger than the sum of its proper divisors (1804261943).

18980802313 is a wasteful number, since it uses less digits than its factorization.

18980802313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6561215.

The product of its (nonzero) digits is 82944, while the sum is 43.

The spelling of 18980802313 in words is "eighteen billion, nine hundred eighty million, eight hundred two thousand, three hundred thirteen".