18450146474 has 16 divisors (see below), whose sum is σ = 27996970248. Its totient is φ = 9118401792.

The previous prime is 18450146467. The next prime is 18450146483. The reversal of 18450146474 is 47464105481.

It can be written as a sum of positive squares in 4 ways, for example, as 16591243249 + 1858903225 = 128807^2 + 43115^2 .

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, 80657 + ... + 208340.

Almost surely, 2^18450146474 is an apocalyptic number.

18450146474 is a deficient number, since it is larger than the sum of its proper divisors (9546823774).

18450146474 is a wasteful number, since it uses less digits than its factorization.

18450146474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289369.

The product of its (nonzero) digits is 430080, while the sum is 44.

The spelling of 18450146474 in words is "eighteen billion, four hundred fifty million, one hundred forty-six thousand, four hundred seventy-four".