13986854947 has 16 divisors (see below), whose sum is σ = 15801670080. Its totient is φ = 12290140800.

The previous prime is 13986854933. The next prime is 13986854951. The reversal of 13986854947 is 74945868931.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13986854947 is a prime.

It is a super-2 number, since 2×13986854947² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13986854977) 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, 234504 + ... + 288037.

It is an arithmetic number, because the mean of its divisors is an integer number (987604380).

Almost surely, 2^13986854947 is an apocalyptic number.

13986854947 is a deficient number, since it is larger than the sum of its proper divisors (1814815133).

13986854947 is a wasteful number, since it uses less digits than its factorization.

13986854947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522654.

The product of its digits is 52254720, while the sum is 64.

The spelling of 13986854947 in words is "thirteen billion, nine hundred eighty-six million, eight hundred fifty-four thousand, nine hundred forty-seven".