18949295170 has 32 divisors (see below), whose sum is σ = 36814402800. Its totient is φ = 6981058560.

The previous prime is 18949295161. The next prime is 18949295179. The reversal of 18949295170 is 7159294981.

It is an interprime number because it is at equal distance from previous prime (18949295161) and next prime (18949295179).

It can be written as a sum of positive squares in 8 ways, for example, as 6338229769 + 12611065401 = 79613^2 + 112299^2 .

It is not an unprimeable number, because it can be changed into a prime (18949295179) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103951 + ... + 220690.

Almost surely, 2^18949295170 is an apocalyptic number.

18949295170 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18949295170 is a deficient number, since it is larger than the sum of its proper divisors (17865107630).

18949295170 is a wasteful number, since it uses less digits than its factorization.

18949295170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325110.

The product of its (nonzero) digits is 1632960, while the sum is 55.

The spelling of 18949295170 in words is "eighteen billion, nine hundred forty-nine million, two hundred ninety-five thousand, one hundred seventy".