136631326406 has 8 divisors (see below), whose sum is σ = 209307564000. Its totient is φ = 66862138408.

The previous prime is 136631326357. The next prime is 136631326423. The reversal of 136631326406 is 604623136631.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

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, 726762281 + ... + 726762468.

It is an arithmetic number, because the mean of its divisors is an integer number (26163445500).

Almost surely, 2^136631326406 is an apocalyptic number.

136631326406 is a deficient number, since it is larger than the sum of its proper divisors (72676237594).

136631326406 is a wasteful number, since it uses less digits than its factorization.

136631326406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1453524798.

The product of its (nonzero) digits is 279936, while the sum is 41.

The spelling of 136631326406 in words is "one hundred thirty-six billion, six hundred thirty-one million, three hundred twenty-six thousand, four hundred six".