13342043978 has 16 divisors (see below), whose sum is σ = 20707171560. Its totient is φ = 6439742400.

The previous prime is 13342043977. The next prime is 13342044031. The reversal of 13342043978 is 87934024331.

It can be written as a sum of positive squares in 4 ways, for example, as 5558746249 + 7783297729 = 74557^2 + 88223^2 .

It is not an unprimeable number, because it can be changed into a prime (13342043977) 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, 327668 + ... + 366128.

Almost surely, 2^13342043978 is an apocalyptic number.

13342043978 is a deficient number, since it is larger than the sum of its proper divisors (7365127582).

13342043978 is a wasteful number, since it uses less digits than its factorization.

13342043978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44473.

The product of its (nonzero) digits is 435456, while the sum is 44.

The spelling of 13342043978 in words is "thirteen billion, three hundred forty-two million, forty-three thousand, nine hundred seventy-eight".