13524635380 has 24 divisors (see below), whose sum is σ = 28425591432. Its totient is φ = 5405309952.

The previous prime is 13524635363. The next prime is 13524635389. The reversal of 13524635380 is 8353642531.

It can be written as a sum of positive squares in 4 ways, for example, as 1179647716 + 12344987664 = 34346^2 + 111108^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13524635389) 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, 259557 + ... + 307276.

It is an arithmetic number, because the mean of its divisors is an integer number (1184399643).

Almost surely, 2^13524635380 is an apocalyptic number.

13524635380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13524635380 is an abundant number, since it is smaller than the sum of its proper divisors (14900956052).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13524635380 is a wasteful number, since it uses less digits than its factorization.

13524635380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 568035 (or 568033 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 40.

The spelling of 13524635380 in words is "thirteen billion, five hundred twenty-four million, six hundred thirty-five thousand, three hundred eighty".