13143870635 has 32 divisors (see below), whose sum is σ = 19057689600. Its totient is φ = 8501189760.

The previous prime is 13143870631. The next prime is 13143870643. The reversal of 13143870635 is 53607834131.

It is a happy number.

It is not a de Polignac number, because 13143870635 - 2² = 13143870631 is a prime.

It is a super-2 number, since 2×13143870635² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13143870592 and 13143870601.

It is not an unprimeable number, because it can be changed into a prime (13143870631) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 109130 + ... + 195440.

It is an arithmetic number, because the mean of its divisors is an integer number (595552800).

Almost surely, 2^13143870635 is an apocalyptic number.

13143870635 is a deficient number, since it is larger than the sum of its proper divisors (5913818965).

13143870635 is a wasteful number, since it uses less digits than its factorization.

13143870635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86571.

The product of its (nonzero) digits is 181440, while the sum is 41.

The spelling of 13143870635 in words is "thirteen billion, one hundred forty-three million, eight hundred seventy thousand, six hundred thirty-five".