18914265038 has 4 divisors (see below), whose sum is σ = 28371397560. Its totient is φ = 9457132518.

The previous prime is 18914265001. The next prime is 18914265049. The reversal of 18914265038 is 83056241981.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83056241981 = 17 ⋅4885661293.

It is a junction number, because it is equal to n+sod(n) for n = 18914264983 and 18914265001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4728566258 + ... + 4728566261.

It is an arithmetic number, because the mean of its divisors is an integer number (7092849390).

Almost surely, 2^18914265038 is an apocalyptic number.

18914265038 is a deficient number, since it is larger than the sum of its proper divisors (9457132522).

18914265038 is an equidigital number, since it uses as much as digits as its factorization.

18914265038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9457132521.

The product of its (nonzero) digits is 414720, while the sum is 47.

The spelling of 18914265038 in words is "eighteen billion, nine hundred fourteen million, two hundred sixty-five thousand, thirty-eight".