18949363502 has 8 divisors (see below), whose sum is σ = 28436163096. Its totient is φ = 9470642472.

The previous prime is 18949363501. The next prime is 18949363529. The reversal of 18949363502 is 20536394981.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18949363501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2013773 + ... + 2023160.

It is an arithmetic number, because the mean of its divisors is an integer number (3554520387).

Almost surely, 2^18949363502 is an apocalyptic number.

18949363502 is a deficient number, since it is larger than the sum of its proper divisors (9486799594).

18949363502 is a wasteful number, since it uses less digits than its factorization.

18949363502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4039282.

The product of its (nonzero) digits is 1399680, while the sum is 50.

The spelling of 18949363502 in words is "eighteen billion, nine hundred forty-nine million, three hundred sixty-three thousand, five hundred two".