73541996136 has 240 divisors, whose sum is σ = 239871365760. Its totient is φ = 20332710720.

The previous prime is 73541996117. The next prime is 73541996147. The reversal of 73541996136 is 63169914537.

73541996136 is a `hidden beast` number, since 7 + 3 + 5 + 4 + 19 + 9 + 613 + 6 = 666.

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 59 ways as a sum of consecutive naturals, for example, 5352171 + ... + 5365893.

It is an arithmetic number, because the mean of its divisors is an integer number (999464024).

Almost surely, 2^73541996136 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 73541996136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119935682880).

73541996136 is an abundant number, since it is smaller than the sum of its proper divisors (166329369624).

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

73541996136 is a wasteful number, since it uses less digits than its factorization.

73541996136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13794 (or 13766 counting only the distinct ones).

The product of its digits is 3674160, while the sum is 54.

The spelling of 73541996136 in words is "seventy-three billion, five hundred forty-one million, nine hundred ninety-six thousand, one hundred thirty-six".