136899958349951 has 8 divisors (see below), whose sum is σ = 140601021791424. Its totient is φ = 133198950938400.

The previous prime is 136899958349923. The next prime is 136899958349993. The reversal of 136899958349951 is 159943859998631.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136899958349951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136899958349911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9031175 + ... + 18851048.

It is an arithmetic number, because the mean of its divisors is an integer number (17575127723928).

Almost surely, 2^{136899958349951} is an apocalyptic number.

136899958349951 is a deficient number, since it is larger than the sum of its proper divisors (3701063441473).

136899958349951 is a wasteful number, since it uses less digits than its factorization.

136899958349951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28014961.

The product of its digits is 20407334400, while the sum is 89.

The spelling of 136899958349951 in words is "one hundred thirty-six trillion, eight hundred ninety-nine billion, nine hundred fifty-eight million, three hundred forty-nine thousand, nine hundred fifty-one".