18675435386 has 8 divisors (see below), whose sum is σ = 28396895124. Its totient is φ = 9209803680.

The previous prime is 18675435287. The next prime is 18675435437. The reversal of 18675435386 is 68353457681.

It can be written as a sum of positive squares in 2 ways, for example, as 18627063361 + 48372025 = 136481^2 + 6955^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63956825 + ... + 63957116.

Almost surely, 2^18675435386 is an apocalyptic number.

18675435386 is a deficient number, since it is larger than the sum of its proper divisors (9721459738).

18675435386 is a wasteful number, since it uses less digits than its factorization.

18675435386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127914016.

The product of its digits is 14515200, while the sum is 56.

The spelling of 18675435386 in words is "eighteen billion, six hundred seventy-five million, four hundred thirty-five thousand, three hundred eighty-six".