18932355434 has 16 divisors (see below), whose sum is σ = 29466753288. Its totient is φ = 9115379712.

The previous prime is 18932355373. The next prime is 18932355457. The reversal of 18932355434 is 43455323981.

It can be written as a sum of positive squares in 4 ways, for example, as 18860902225 + 71453209 = 137335^2 + 8453^2 .

It is a Curzon 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, 1311599 + ... + 1325954.

Almost surely, 2^18932355434 is an apocalyptic number.

18932355434 is a deficient number, since it is larger than the sum of its proper divisors (10534397854).

18932355434 is a wasteful number, since it uses less digits than its factorization.

18932355434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2637689.

The product of its digits is 1555200, while the sum is 47.

The spelling of 18932355434 in words is "eighteen billion, nine hundred thirty-two million, three hundred fifty-five thousand, four hundred thirty-four".