13747815009220 has 24 divisors (see below), whose sum is σ = 28937396251008. Its totient is φ = 5486367007200.

The previous prime is 13747815009217. The next prime is 13747815009221. The reversal of 13747815009220 is 2290051874731.

It is not an unprimeable number, because it can be changed into a prime (13747815009221) 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, 797428446 + ... + 797445685.

It is an arithmetic number, because the mean of its divisors is an integer number (1205724843792).

Almost surely, 2^{13747815009220} is an apocalyptic number.

13747815009220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13747815009220 is an abundant number, since it is smaller than the sum of its proper divisors (15189581241788).

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

13747815009220 is a wasteful number, since it uses less digits than its factorization.

13747815009220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1594874571 (or 1594874569 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 49.

The spelling of 13747815009220 in words is "thirteen trillion, seven hundred forty-seven billion, eight hundred fifteen million, nine thousand, two hundred twenty".