13852939881 has 32 divisors (see below), whose sum is σ = 21333012480. Its totient is φ = 7907803200.

The previous prime is 13852939829. The next prime is 13852939883. The reversal of 13852939881 is 18893925831.

It is not a de Polignac number, because 13852939881 - 2⁹ = 13852939369 is a prime.

It is a super-2 number, since 2×13852939881² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (13852939883) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44616 + ... + 172326.

It is an arithmetic number, because the mean of its divisors is an integer number (666656640).

Almost surely, 2^13852939881 is an apocalyptic number.

13852939881 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13852939881 is a deficient number, since it is larger than the sum of its proper divisors (7480072599).

13852939881 is a wasteful number, since it uses less digits than its factorization.

13852939881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127917.

The product of its digits is 3732480, while the sum is 57.

The spelling of 13852939881 in words is "thirteen billion, eight hundred fifty-two million, nine hundred thirty-nine thousand, eight hundred eighty-one".