27043663432 has 8 divisors (see below), whose sum is σ = 50706868950. Its totient is φ = 13521831712.

The previous prime is 27043663399. The next prime is 27043663447. The reversal of 27043663432 is 23436634072.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 15078366436 + 11965296996 = 122794^2 + 109386^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1690228957 + ... + 1690228972.

Almost surely, 2^27043663432 is an apocalyptic number.

It is an amenable number.

27043663432 is a deficient number, since it is larger than the sum of its proper divisors (23663205518).

27043663432 is a wasteful number, since it uses less digits than its factorization.

27043663432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3380457935 (or 3380457931 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 40.

The spelling of 27043663432 in words is "twenty-seven billion, forty-three million, six hundred sixty-three thousand, four hundred thirty-two".