13946314978 has 8 divisors (see below), whose sum is σ = 20942438400. Its totient is φ = 6965502180.

The previous prime is 13946314933. The next prime is 13946314979. The reversal of 13946314978 is 87941364931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (13946314979) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3825378 + ... + 3829021.

It is an arithmetic number, because the mean of its divisors is an integer number (2617804800).

Almost surely, 2^13946314978 is an apocalyptic number.

13946314978 is a deficient number, since it is larger than the sum of its proper divisors (6996123422).

13946314978 is an equidigital number, since it uses as much as digits as its factorization.

13946314978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7655312.

The product of its digits is 3919104, while the sum is 55.

The spelling of 13946314978 in words is "thirteen billion, nine hundred forty-six million, three hundred fourteen thousand, nine hundred seventy-eight".