18903826364 has 6 divisors (see below), whose sum is σ = 33081696144. Its totient is φ = 9451913180.

The previous prime is 18903826363. The next prime is 18903826397. The reversal of 18903826364 is 46362830981.

It is a happy number.

It is a super-2 number, since 2×18903826364² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18903826363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2362978292 + ... + 2362978299.

It is an arithmetic number, because the mean of its divisors is an integer number (5513616024).

Almost surely, 2^18903826364 is an apocalyptic number.

It is an amenable number.

18903826364 is a deficient number, since it is larger than the sum of its proper divisors (14177869780).

18903826364 is a wasteful number, since it uses less digits than its factorization.

18903826364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4725956595 (or 4725956593 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 50.

The spelling of 18903826364 in words is "eighteen billion, nine hundred three million, eight hundred twenty-six thousand, three hundred sixty-four".