618189296806 has 4 divisors (see below), whose sum is σ = 927283945212. Its totient is φ = 309094648402.

The previous prime is 618189296783. The next prime is 618189296831. The reversal of 618189296806 is 608692981816.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 154547324200 + ... + 154547324203.

It is an arithmetic number, because the mean of its divisors is an integer number (231820986303).

Almost surely, 2^618189296806 is an apocalyptic number.

618189296806 is a deficient number, since it is larger than the sum of its proper divisors (309094648406).

618189296806 is a wasteful number, since it uses less digits than its factorization.

618189296806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309094648405.

The product of its (nonzero) digits is 17915904, while the sum is 64.

The spelling of 618189296806 in words is "six hundred eighteen billion, one hundred eighty-nine million, two hundred ninety-six thousand, eight hundred six".