13878356463 has 6 divisors (see below), whose sum is σ = 20046514904. Its totient is φ = 9252237636.

The previous prime is 13878356347. The next prime is 13878356491. The reversal of 13878356463 is 36465387831.

13878356463 is a `hidden beast` number, since 1 + 3 + 8 + 78 + 3 + 564 + 6 + 3 = 666.

It is not a de Polignac number, because 13878356463 - 2⁸ = 13878356207 is a prime.

It is a super-2 number, since 2×13878356463² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13878356663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 771019795 + ... + 771019812.

Almost surely, 2^13878356463 is an apocalyptic number.

13878356463 is a deficient number, since it is larger than the sum of its proper divisors (6168158441).

13878356463 is a wasteful number, since it uses less digits than its factorization.

13878356463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1542039613 (or 1542039610 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 54.

The spelling of 13878356463 in words is "thirteen billion, eight hundred seventy-eight million, three hundred fifty-six thousand, four hundred sixty-three".