18426364946 has 32 divisors (see below), whose sum is σ = 32132671488. Its totient is φ = 7840996240.

The previous prime is 18426364937. The next prime is 18426364963. The reversal of 18426364946 is 64946362481.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 363620 + ... + 411183.

It is an arithmetic number, because the mean of its divisors is an integer number (1004145984).

Almost surely, 2^18426364946 is an apocalyptic number.

18426364946 is a deficient number, since it is larger than the sum of its proper divisors (13706306542).

18426364946 is a wasteful number, since it uses less digits than its factorization.

18426364946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 774886.

The product of its digits is 5971968, while the sum is 53.

The spelling of 18426364946 in words is "eighteen billion, four hundred twenty-six million, three hundred sixty-four thousand, nine hundred forty-six".