136997818944 has 252 divisors, whose sum is σ = 447923722896. Its totient is φ = 36839018496.

The previous prime is 136997818933. The next prime is 136997818957. The reversal of 136997818944 is 449818799631.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2693719 + ... + 2744105.

Almost surely, 2^136997818944 is an apocalyptic number.

136997818944 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 136997818944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (223961861448).

136997818944 is an abundant number, since it is smaller than the sum of its proper divisors (310925903952).

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

136997818944 is a wasteful number, since it uses less digits than its factorization.

136997818944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50450 (or 50416 counting only the distinct ones).

The product of its digits is 94058496, while the sum is 69.

The spelling of 136997818944 in words is "one hundred thirty-six billion, nine hundred ninety-seven million, eight hundred eighteen thousand, nine hundred forty-four".