18601097494 has 8 divisors (see below), whose sum is σ = 31887595728. Its totient is φ = 7971898920.

The previous prime is 18601097483. The next prime is 18601097503. The reversal of 18601097494 is 49479010681.

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

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, 664324897 + ... + 664324924.

It is an arithmetic number, because the mean of its divisors is an integer number (3985949466).

Almost surely, 2^18601097494 is an apocalyptic number.

18601097494 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

18601097494 is a deficient number, since it is larger than the sum of its proper divisors (13286498234).

18601097494 is a wasteful number, since it uses less digits than its factorization.

18601097494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1328649830.

The product of its (nonzero) digits is 435456, while the sum is 49.

The spelling of 18601097494 in words is "eighteen billion, six hundred one million, ninety-seven thousand, four hundred ninety-four".