13991058048 has 128 divisors (see below), whose sum is σ = 41638472640. Its totient is φ = 4125081600.

The previous prime is 13991058001. The next prime is 13991058061. The reversal of 13991058048 is 84085019931.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 13991057988 and 13991058006.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111528 + ... + 201048.

Almost surely, 2^13991058048 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13991058048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20819236320).

13991058048 is an abundant number, since it is smaller than the sum of its proper divisors (27647414592).

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

13991058048 is a wasteful number, since it uses less digits than its factorization.

13991058048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89586 (or 89574 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 48.

The spelling of 13991058048 in words is "thirteen billion, nine hundred ninety-one million, fifty-eight thousand, forty-eight".