135490587880 has 16 divisors (see below), whose sum is σ = 304853822820. Its totient is φ = 54196235136.

The previous prime is 135490587871. The next prime is 135490587901. The reversal of 135490587880 is 88785094531.

It can be written as a sum of positive squares in 2 ways, for example, as 132544052356 + 2946535524 = 364066^2 + 54282^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1693632309 + ... + 1693632388.

Almost surely, 2^135490587880 is an apocalyptic number.

135490587880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135490587880 is an abundant number, since it is smaller than the sum of its proper divisors (169363234940).

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

135490587880 is a wasteful number, since it uses less digits than its factorization.

135490587880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3387264708 (or 3387264704 counting only the distinct ones).

The product of its (nonzero) digits is 9676800, while the sum is 58.

The spelling of 135490587880 in words is "one hundred thirty-five billion, four hundred ninety million, five hundred eighty-seven thousand, eight hundred eighty".