13966694434 has 16 divisors (see below), whose sum is σ = 26119532736. Its totient is φ = 5441569200.

The previous prime is 13966694431. The next prime is 13966694453. The reversal of 13966694434 is 43449666931.

It is not an unprimeable number, because it can be changed into a prime (13966694431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45346257 + ... + 45346564.

It is an arithmetic number, because the mean of its divisors is an integer number (1632470796).

Almost surely, 2^13966694434 is an apocalyptic number.

13966694434 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

13966694434 is a deficient number, since it is larger than the sum of its proper divisors (12152838302).

13966694434 is a wasteful number, since it uses less digits than its factorization.

13966694434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90692841.

The product of its digits is 10077696, while the sum is 55.

The spelling of 13966694434 in words is "thirteen billion, nine hundred sixty-six million, six hundred ninety-four thousand, four hundred thirty-four".