136128547899 has 24 divisors (see below), whose sum is σ = 197823375360. Its totient is φ = 90202122288.

The previous prime is 136128547859. The next prime is 136128547913. The reversal of 136128547899 is 998745821631.

136128547899 is a `hidden beast` number, since 1 + 3 + 6 + 1 + 2 + 8 + 547 + 89 + 9 = 666.

It is not a de Polignac number, because 136128547899 - 2¹³ = 136128539707 is a prime.

It is not an unprimeable number, because it can be changed into a prime (136128547859) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3536334 + ... + 3574620.

It is an arithmetic number, because the mean of its divisors is an integer number (8242640640).

Almost surely, 2^136128547899 is an apocalyptic number.

136128547899 is a deficient number, since it is larger than the sum of its proper divisors (61694827461).

136128547899 is a wasteful number, since it uses less digits than its factorization.

136128547899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40679 (or 40676 counting only the distinct ones).

The product of its digits is 26127360, while the sum is 63.

The spelling of 136128547899 in words is "one hundred thirty-six billion, one hundred twenty-eight million, five hundred forty-seven thousand, eight hundred ninety-nine".