135869565240 has 80 divisors (see below), whose sum is σ = 456672716280. Its totient is φ = 36231883200.

The previous prime is 135869565163. The next prime is 135869565263. The reversal of 135869565240 is 42565968531.

135869565240 is a `hidden beast` number, since 1 + 3 + 5 + 8 + 69 + 56 + 524 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 20964286 + ... + 20970765.

Almost surely, 2^135869565240 is an apocalyptic number.

135869565240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135869565240 is an abundant number, since it is smaller than the sum of its proper divisors (320803151040).

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

135869565240 is a wasteful number, since it uses less digits than its factorization.

135869565240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41935074 (or 41935061 counting only the distinct ones).

The product of its (nonzero) digits is 7776000, while the sum is 54.

The spelling of 135869565240 in words is "one hundred thirty-five billion, eight hundred sixty-nine million, five hundred sixty-five thousand, two hundred forty".