13143973754 has 16 divisors (see below), whose sum is σ = 19931847336. Its totient is φ = 6500160000.

The previous prime is 13143973753. The next prime is 13143973757. The reversal of 13143973754 is 45737934131.

It can be written as a sum of positive squares in 4 ways, for example, as 11821560529 + 1322413225 = 108727^2 + 36365^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13143973699 and 13143973708.

It is not an unprimeable number, because it can be changed into a prime (13143973753) 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, 164054 + ... + 230654.

Almost surely, 2^13143973754 is an apocalyptic number.

13143973754 is a deficient number, since it is larger than the sum of its proper divisors (6787873582).

13143973754 is a wasteful number, since it uses less digits than its factorization.

13143973754 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67681.

The product of its digits is 952560, while the sum is 47.

The spelling of 13143973754 in words is "thirteen billion, one hundred forty-three million, nine hundred seventy-three thousand, seven hundred fifty-four".