13641405524 has 18 divisors (see below), whose sum is σ = 24955524090. Its totient is φ = 6524149456.

The previous prime is 13641405469. The next prime is 13641405529. The reversal of 13641405524 is 42550414631.

It can be written as a sum of positive squares in only one way, i.e., 13331011600 + 310393924 = 115460^2 + 17618^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13641405529) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3221279 + ... + 3225510.

It is an arithmetic number, because the mean of its divisors is an integer number (1386418005).

Almost surely, 2^13641405524 is an apocalyptic number.

It is an amenable number.

13641405524 is a deficient number, since it is larger than the sum of its proper divisors (11314118566).

13641405524 is a wasteful number, since it uses less digits than its factorization.

13641405524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6446839 (or 6446814 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 35.

The spelling of 13641405524 in words is "thirteen billion, six hundred forty-one million, four hundred five thousand, five hundred twenty-four".