36456237640 has 128 divisors (see below), whose sum is σ = 87625105920. Its totient is φ = 13629772800.

The previous prime is 36456237637. The next prime is 36456237641. The reversal of 36456237640 is 4673265463.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (36456237641) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3877345 + ... + 3886735.

It is an arithmetic number, because the mean of its divisors is an integer number (684571140).

Almost surely, 2^36456237640 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 36456237640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43812552960).

36456237640 is an abundant number, since it is smaller than the sum of its proper divisors (51168868280).

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

36456237640 is a wasteful number, since it uses less digits than its factorization.

36456237640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9543 (or 9539 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 46.

The spelling of 36456237640 in words is "thirty-six billion, four hundred fifty-six million, two hundred thirty-seven thousand, six hundred forty".