18912913246 has 8 divisors (see below), whose sum is σ = 28370566224. Its totient is φ = 9456057840.

The previous prime is 18912913237. The next prime is 18912913297. The reversal of 18912913246 is 64231921981.

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

It is a junction number, because it is equal to n+sod(n) for n = 18912913196 and 18912913205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136090 + ... + 237373.

It is an arithmetic number, because the mean of its divisors is an integer number (3546320778).

Almost surely, 2^18912913246 is an apocalyptic number.

18912913246 is a deficient number, since it is larger than the sum of its proper divisors (9457652978).

18912913246 is a wasteful number, since it uses less digits than its factorization.

18912913246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398786.

The product of its digits is 186624, while the sum is 46.

The spelling of 18912913246 in words is "eighteen billion, nine hundred twelve million, nine hundred thirteen thousand, two hundred forty-six".