136879295987 has 8 divisors (see below), whose sum is σ = 164666822400. Its totient is φ = 111150104904.

The previous prime is 136879295983. The next prime is 136879296019. The reversal of 136879295987 is 789592978631.

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

It is a cyclic number.

It is not a de Polignac number, because 136879295987 - 2² = 136879295983 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136879295983) 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, 514583687 + ... + 514583952.

It is an arithmetic number, because the mean of its divisors is an integer number (20583352800).

Almost surely, 2^136879295987 is an apocalyptic number.

136879295987 is a deficient number, since it is larger than the sum of its proper divisors (27787526413).

136879295987 is a wasteful number, since it uses less digits than its factorization.

136879295987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1029167665.

The product of its digits is 411505920, while the sum is 74.

The spelling of 136879295987 in words is "one hundred thirty-six billion, eight hundred seventy-nine million, two hundred ninety-five thousand, nine hundred eighty-seven".