135880257898587 has 4 divisors (see below), whose sum is σ = 181173677198120. Its totient is φ = 90586838599056.

The previous prime is 135880257898573. The next prime is 135880257898603. The reversal of 135880257898587 is 785898752088531.

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

It is not a de Polignac number, because 135880257898587 - 2⁴ = 135880257898571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135880257898387) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22646709649762 + ... + 22646709649767.

It is an arithmetic number, because the mean of its divisors is an integer number (45293419299530).

Almost surely, 2^{135880257898587} is an apocalyptic number.

135880257898587 is a deficient number, since it is larger than the sum of its proper divisors (45293419299533).

135880257898587 is an equidigital number, since it uses as much as digits as its factorization.

135880257898587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45293419299532.

The product of its (nonzero) digits is 10838016000, while the sum is 84.

The spelling of 135880257898587 in words is "one hundred thirty-five trillion, eight hundred eighty billion, two hundred fifty-seven million, eight hundred ninety-eight thousand, five hundred eighty-seven".