13998779280492 has 24 divisors (see below), whose sum is σ = 34382966654400. Its totient is φ = 4420667141136.

The previous prime is 13998779280481. The next prime is 13998779280559. The reversal of 13998779280492 is 29408297789931.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30699077142 + ... + 30699077597.

It is an arithmetic number, because the mean of its divisors is an integer number (1432623610600).

Almost surely, 2^{13998779280492} is an apocalyptic number.

13998779280492 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13998779280492 is an abundant number, since it is smaller than the sum of its proper divisors (20384187373908).

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

13998779280492 is a wasteful number, since it uses less digits than its factorization.

13998779280492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61398154765 (or 61398154763 counting only the distinct ones).

The product of its (nonzero) digits is 987614208, while the sum is 78.

The spelling of 13998779280492 in words is "thirteen trillion, nine hundred ninety-eight billion, seven hundred seventy-nine million, two hundred eighty thousand, four hundred ninety-two".