136873436898 has 64 divisors (see below), whose sum is σ = 309271818240. Its totient is φ = 40007908800.

The previous prime is 136873436879. The next prime is 136873436963. The reversal of 136873436898 is 898634378631.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 519168 + ... + 737076.

It is an arithmetic number, because the mean of its divisors is an integer number (4832372160).

Almost surely, 2^136873436898 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 136873436898, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154635909120).

136873436898 is an abundant number, since it is smaller than the sum of its proper divisors (172398381342).

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

136873436898 is a wasteful number, since it uses less digits than its factorization.

136873436898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218263.

The product of its digits is 125411328, while the sum is 66.

The spelling of 136873436898 in words is "one hundred thirty-six billion, eight hundred seventy-three million, four hundred thirty-six thousand, eight hundred ninety-eight".