13877357481 has 48 divisors (see below), whose sum is σ = 22419423936. Its totient is φ = 8527363776.

The previous prime is 13877357413. The next prime is 13877357489. The reversal of 13877357481 is 18475377831.

13877357481 is a `hidden beast` number, since 13 + 87 + 73 + 5 + 7 + 481 = 666.

It is not a de Polignac number, because 13877357481 - 2⁷ = 13877357353 is a prime.

It is a super-2 number, since 2×13877357481² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13877357489) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2439066 + ... + 2444748.

It is an arithmetic number, because the mean of its divisors is an integer number (467071332).

Almost surely, 2^13877357481 is an apocalyptic number.

It is an amenable number.

13877357481 is a deficient number, since it is larger than the sum of its proper divisors (8542066455).

13877357481 is an equidigital number, since it uses as much as digits as its factorization.

13877357481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6484 (or 6472 counting only the distinct ones).

The product of its digits is 3951360, while the sum is 54.

The spelling of 13877357481 in words is "thirteen billion, eight hundred seventy-seven million, three hundred fifty-seven thousand, four hundred eighty-one".