18458701982 has 16 divisors (see below), whose sum is σ = 31885045632. Its totient is φ = 7850483160.

The previous prime is 18458701979. The next prime is 18458701991. The reversal of 18458701982 is 28910785481.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5030528 + ... + 5034195.

It is an arithmetic number, because the mean of its divisors is an integer number (1992815352).

Almost surely, 2^18458701982 is an apocalyptic number.

18458701982 is a deficient number, since it is larger than the sum of its proper divisors (13426343650).

18458701982 is a wasteful number, since it uses less digits than its factorization.

18458701982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10064863.

The product of its (nonzero) digits is 1290240, while the sum is 53.

The spelling of 18458701982 in words is "eighteen billion, four hundred fifty-eight million, seven hundred one thousand, nine hundred eighty-two".