14171628820 has 24 divisors (see below), whose sum is σ = 29763673128. Its totient is φ = 5668032000.

The previous prime is 14171628797. The next prime is 14171628833. The reversal of 14171628820 is 2882617141.

It can be written as a sum of positive squares in 4 ways, for example, as 2451834256 + 11719794564 = 49516^2 + 108258^2 .

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178600 + ... + 245440.

It is an arithmetic number, because the mean of its divisors is an integer number (1240153047).

Almost surely, 2^14171628820 is an apocalyptic number.

14171628820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14171628820 is an abundant number, since it is smaller than the sum of its proper divisors (15592044308).

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

14171628820 is a wasteful number, since it uses less digits than its factorization.

14171628820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77451 (or 77449 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 40.

The spelling of 14171628820 in words is "fourteen billion, one hundred seventy-one million, six hundred twenty-eight thousand, eight hundred twenty".