13975783847 has 16 divisors (see below), whose sum is σ = 14776565760. Its totient is φ = 13197492000.

The previous prime is 13975783799. The next prime is 13975783859. The reversal of 13975783847 is 74838757931.

It is a cyclic number.

It is not a de Polignac number, because 13975783847 - 2²² = 13971589543 is a prime.

It is a super-2 number, since 2×13975783847² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13975783847.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13975783867) 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, 1529729 + ... + 1538837.

It is an arithmetic number, because the mean of its divisors is an integer number (923535360).

Almost surely, 2^13975783847 is an apocalyptic number.

13975783847 is a deficient number, since it is larger than the sum of its proper divisors (800781913).

13975783847 is a wasteful number, since it uses less digits than its factorization.

13975783847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10334.

The product of its digits is 35562240, while the sum is 62.

The spelling of 13975783847 in words is "thirteen billion, nine hundred seventy-five million, seven hundred eighty-three thousand, eight hundred forty-seven".