14987780988 has 24 divisors (see below), whose sum is σ = 34977920208. Its totient is φ = 4995008256.

The previous prime is 14987780981. The next prime is 14987781007. The reversal of 14987780988 is 88908778941.

It is a super-2 number, since 2×14987780988² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14987780981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45181 + ... + 178932.

It is an arithmetic number, because the mean of its divisors is an integer number (1457413342).

Almost surely, 2^14987780988 is an apocalyptic number.

It is an amenable number.

14987780988 is an abundant number, since it is smaller than the sum of its proper divisors (19990139220).

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

14987780988 is a wasteful number, since it uses less digits than its factorization.

14987780988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229693 (or 229691 counting only the distinct ones).

The product of its (nonzero) digits is 65028096, while the sum is 69.

The spelling of 14987780988 in words is "fourteen billion, nine hundred eighty-seven million, seven hundred eighty thousand, nine hundred eighty-eight".