13877477807871 has 48 divisors (see below), whose sum is σ = 19090746904320. Its totient is φ = 8964349430400.

The previous prime is 13877477807863. The next prime is 13877477807873. The reversal of 13877477807871 is 17870877477831.

It is not a de Polignac number, because 13877477807871 - 2³ = 13877477807863 is a prime.

It is a super-5 number, since 5×13877477807871⁵ (a number of 67 digits) contains 55555 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13877477807793 and 13877477807802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13877477807873) 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, 663888406 + ... + 663909308.

It is an arithmetic number, because the mean of its divisors is an integer number (397723893840).

Almost surely, 2^{13877477807871} is an apocalyptic number.

13877477807871 is a deficient number, since it is larger than the sum of its proper divisors (5213269096449).

13877477807871 is an equidigital number, since it uses as much as digits as its factorization.

13877477807871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21724 (or 21645 counting only the distinct ones).

The product of its (nonzero) digits is 722835456, while the sum is 75.

The spelling of 13877477807871 in words is "thirteen trillion, eight hundred seventy-seven billion, four hundred seventy-seven million, eight hundred seven thousand, eight hundred seventy-one".