13869990728880 has 640 divisors, whose sum is σ = 51388186945536. Its totient is φ = 3050508288000.

The previous prime is 13869990728849. The next prime is 13869990728917. The reversal of 13869990728880 is 8882709996831.

It is a Harshad number since it is a multiple of its sum of digits (78).

It is a junction number, because it is equal to n+sod(n) for n = 13869990728796 and 13869990728805.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 474871237 + ... + 474900443.

Almost surely, 2^{13869990728880} is an apocalyptic number.

13869990728880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13869990728880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25694093472768).

13869990728880 is an abundant number, since it is smaller than the sum of its proper divisors (37518196216656).

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

13869990728880 is a wasteful number, since it uses less digits than its factorization.

13869990728880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29485 (or 29479 counting only the distinct ones).

The product of its (nonzero) digits is 752467968, while the sum is 78.

The spelling of 13869990728880 in words is "thirteen trillion, eight hundred sixty-nine billion, nine hundred ninety million, seven hundred twenty-eight thousand, eight hundred eighty".