13942378893 has 16 divisors (see below), whose sum is σ = 18742740480. Its totient is φ = 9218593536.

The previous prime is 13942378889. The next prime is 13942378951. The reversal of 13942378893 is 39887324931.

It is not a de Polignac number, because 13942378893 - 2² = 13942378889 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13942378693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 448996 + ... + 479042.

It is an arithmetic number, because the mean of its divisors is an integer number (1171421280).

Almost surely, 2^13942378893 is an apocalyptic number.

It is an amenable number.

13942378893 is a deficient number, since it is larger than the sum of its proper divisors (4800361587).

13942378893 is a wasteful number, since it uses less digits than its factorization.

13942378893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31316.

The product of its digits is 7838208, while the sum is 57.

The spelling of 13942378893 in words is "thirteen billion, nine hundred forty-two million, three hundred seventy-eight thousand, eight hundred ninety-three".