36561776448 has 112 divisors (see below), whose sum is σ = 100474637760. Its totient is φ = 11719680000.

The previous prime is 36561776443. The next prime is 36561776479. The reversal of 36561776448 is 84467716563.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36561776441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1384488 + ... + 1410648.

It is an arithmetic number, because the mean of its divisors is an integer number (897094980).

Almost surely, 2^36561776448 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 36561776448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50237318880).

36561776448 is an abundant number, since it is smaller than the sum of its proper divisors (63912861312).

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

36561776448 is a wasteful number, since it uses less digits than its factorization.

36561776448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26456 (or 26446 counting only the distinct ones).

The product of its digits is 20321280, while the sum is 57.

The spelling of 36561776448 in words is "thirty-six billion, five hundred sixty-one million, seven hundred seventy-six thousand, four hundred forty-eight".