136873207808 has 192 divisors, whose sum is σ = 291724392960. Its totient is φ = 64099123200.

The previous prime is 136873207769. The next prime is 136873207847. The reversal of 136873207808 is 808702378631.

It is an interprime number because it is at equal distance from previous prime (136873207769) and next prime (136873207847).

It is a self number, because there is not a number n which added to its sum of digits gives 136873207808.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 494126966 + ... + 494127242.

It is an arithmetic number, because the mean of its divisors is an integer number (1519397880).

Almost surely, 2^136873207808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 136873207808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145862196480).

136873207808 is an abundant number, since it is smaller than the sum of its proper divisors (154851185152).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

136873207808 is a wasteful number, since it uses less digits than its factorization.

136873207808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554 (or 534 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 53.

The spelling of 136873207808 in words is "one hundred thirty-six billion, eight hundred seventy-three million, two hundred seven thousand, eight hundred eight".