13891004471377 has 16 divisors (see below), whose sum is σ = 16049066645952. Its totient is φ = 11882505323520.

The previous prime is 13891004471369. The next prime is 13891004471401. The reversal of 13891004471377 is 77317440019831.

It is a cyclic number.

It is not a de Polignac number, because 13891004471377 - 2³ = 13891004471369 is a prime.

It is a super-2 number, since 2×13891004471377² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13891004471347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8110863 + ... + 9673060.

It is an arithmetic number, because the mean of its divisors is an integer number (1003066665372).

Almost surely, 2^{13891004471377} is an apocalyptic number.

13891004471377 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

13891004471377 is a deficient number, since it is larger than the sum of its proper divisors (2158062174575).

13891004471377 is a wasteful number, since it uses less digits than its factorization.

13891004471377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17788128.

The product of its (nonzero) digits is 3556224, while the sum is 55.

The spelling of 13891004471377 in words is "thirteen trillion, eight hundred ninety-one billion, four million, four hundred seventy-one thousand, three hundred seventy-seven".