135517278670 has 16 divisors (see below), whose sum is σ = 243938178288. Its totient is φ = 54205338880.

The previous prime is 135517278653. The next prime is 135517278691. The reversal of 135517278670 is 76872715531.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204285 + ... + 559255.

It is an arithmetic number, because the mean of its divisors is an integer number (15246136143).

Almost surely, 2^135517278670 is an apocalyptic number.

135517278670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

135517278670 is a deficient number, since it is larger than the sum of its proper divisors (108420899618).

135517278670 is a wasteful number, since it uses less digits than its factorization.

135517278670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393155.

The product of its (nonzero) digits is 2469600, while the sum is 52.

The spelling of 135517278670 in words is "one hundred thirty-five billion, five hundred seventeen million, two hundred seventy-eight thousand, six hundred seventy".