18319854692 has 6 divisors (see below), whose sum is σ = 32059745718. Its totient is φ = 9159927344.

The previous prime is 18319854671. The next prime is 18319854713. The reversal of 18319854692 is 29645891381.

It is an interprime number because it is at equal distance from previous prime (18319854671) and next prime (18319854713).

It can be written as a sum of positive squares in only one way, i.e., 18234181156 + 85673536 = 135034^2 + 9256^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2289981833 + ... + 2289981840.

It is an arithmetic number, because the mean of its divisors is an integer number (5343290953).

Almost surely, 2^18319854692 is an apocalyptic number.

It is an amenable number.

18319854692 is a deficient number, since it is larger than the sum of its proper divisors (13739891026).

18319854692 is a wasteful number, since it uses less digits than its factorization.

18319854692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4579963677 (or 4579963675 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 56.

The spelling of 18319854692 in words is "eighteen billion, three hundred nineteen million, eight hundred fifty-four thousand, six hundred ninety-two".