18964495270 has 32 divisors (see below), whose sum is σ = 41065977600. Its totient is φ = 6159895776.

The previous prime is 18964495259. The next prime is 18964495271. The reversal of 18964495270 is 7259446981.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18964495271) 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, 7128180 + ... + 7130839.

It is an arithmetic number, because the mean of its divisors is an integer number (1283311800).

Almost surely, 2^18964495270 is an apocalyptic number.

18964495270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18964495270 is an abundant number, since it is smaller than the sum of its proper divisors (22101482330).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18964495270 is a wasteful number, since it uses less digits than its factorization.

18964495270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14259052.

The product of its (nonzero) digits is 4354560, while the sum is 55.

The spelling of 18964495270 in words is "eighteen billion, nine hundred sixty-four million, four hundred ninety-five thousand, two hundred seventy".