13523671402 has 4 divisors (see below), whose sum is σ = 20285507106. Its totient is φ = 6761835700.

The previous prime is 13523671373. The next prime is 13523671507. The reversal of 13523671402 is 20417632531.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 11487766761 + 2035904641 = 107181^2 + 45121^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3380917849 + ... + 3380917852.

Almost surely, 2^13523671402 is an apocalyptic number.

13523671402 is a deficient number, since it is larger than the sum of its proper divisors (6761835704).

13523671402 is an equidigital number, since it uses as much as digits as its factorization.

13523671402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6761835703.

The product of its (nonzero) digits is 30240, while the sum is 34.

The spelling of 13523671402 in words is "thirteen billion, five hundred twenty-three million, six hundred seventy-one thousand, four hundred two".