136254731806 has 16 divisors (see below), whose sum is σ = 218785478400. Its totient is φ = 63447786648.

The previous prime is 136254731777. The next prime is 136254731813. The reversal of 136254731806 is 608137452631.

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, 30384630 + ... + 30389113.

It is an arithmetic number, because the mean of its divisors is an integer number (13674092400).

Almost surely, 2^136254731806 is an apocalyptic number.

136254731806 is a deficient number, since it is larger than the sum of its proper divisors (82530746594).

136254731806 is a wasteful number, since it uses less digits than its factorization.

136254731806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60773823.

The product of its (nonzero) digits is 725760, while the sum is 46.

The spelling of 136254731806 in words is "one hundred thirty-six billion, two hundred fifty-four million, seven hundred thirty-one thousand, eight hundred six".