13881461578 has 8 divisors (see below), whose sum is σ = 20822729472. Its totient is φ = 6940551756.

The previous prime is 13881461567. The next prime is 13881461597. The reversal of 13881461578 is 87516418831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52401 + ... + 174667.

It is an arithmetic number, because the mean of its divisors is an integer number (2602841184).

Almost surely, 2^13881461578 is an apocalyptic number.

13881461578 is a deficient number, since it is larger than the sum of its proper divisors (6941267894).

13881461578 is a wasteful number, since it uses less digits than its factorization.

13881461578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179036.

The product of its digits is 1290240, while the sum is 52.

The spelling of 13881461578 in words is "thirteen billion, eight hundred eighty-one million, four hundred sixty-one thousand, five hundred seventy-eight".