13880978485 has 16 divisors (see below), whose sum is σ = 19127856960. Its totient is φ = 9563927040.

The previous prime is 13880978483. The next prime is 13880978519. The reversal of 13880978485 is 58487908831.

It is not a de Polignac number, because 13880978485 - 2¹ = 13880978483 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13880978483) 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, 6640572 + ... + 6642661.

It is an arithmetic number, because the mean of its divisors is an integer number (1195491060).

Almost surely, 2^13880978485 is an apocalyptic number.

It is an amenable number.

13880978485 is a deficient number, since it is larger than the sum of its proper divisors (5246878475).

13880978485 is a wasteful number, since it uses less digits than its factorization.

13880978485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13283268.

The product of its (nonzero) digits is 15482880, while the sum is 61.

The spelling of 13880978485 in words is "thirteen billion, eight hundred eighty million, nine hundred seventy-eight thousand, four hundred eighty-five".