14877785920 has 28 divisors (see below), whose sum is σ = 35427728484. Its totient is φ = 5951114240.

The previous prime is 14877785899. The next prime is 14877785927. The reversal of 14877785920 is 2958777841.

It can be written as a sum of positive squares in 2 ways, for example, as 9597729024 + 5280056896 = 97968^2 + 72664^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14877785927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23246221 + ... + 23246860.

Almost surely, 2^14877785920 is an apocalyptic number.

14877785920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14877785920 is an abundant number, since it is smaller than the sum of its proper divisors (20549942564).

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

14877785920 is an equidigital number, since it uses as much as digits as its factorization.

14877785920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46493098 (or 46493088 counting only the distinct ones).

The product of its (nonzero) digits is 7902720, while the sum is 58.

The spelling of 14877785920 in words is "fourteen billion, eight hundred seventy-seven million, seven hundred eighty-five thousand, nine hundred twenty".