73236404736 has 240 divisors, whose sum is σ = 244146659328. Its totient is φ = 20887142400.

The previous prime is 73236404713. The next prime is 73236404771. The reversal of 73236404736 is 63740463237.

73236404736 is a `hidden beast` number, since 7 + 3 + 236 + 404 + 7 + 3 + 6 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 73236404691 and 73236404700.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 819201 + ... + 904191.

Almost surely, 2^73236404736 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 73236404736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122073329664).

73236404736 is an abundant number, since it is smaller than the sum of its proper divisors (170910254592).

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

73236404736 is a wasteful number, since it uses less digits than its factorization.

73236404736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85043 (or 85024 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 45.

The spelling of 73236404736 in words is "seventy-three billion, two hundred thirty-six million, four hundred four thousand, seven hundred thirty-six".