40815251828736 has 312 divisors, whose sum is σ = 136708816430592. Its totient is φ = 10601361408000.

The previous prime is 40815251828657. The next prime is 40815251828761. The reversal of 40815251828736 is 63782815251804.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 40815251828736.

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, 8447161 + ... + 12368711.

Almost surely, 2^{40815251828736} 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 40815251828736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68354408215296).

40815251828736 is an abundant number, since it is smaller than the sum of its proper divisors (95893564601856).

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

40815251828736 is a wasteful number, since it uses less digits than its factorization.

40815251828736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3921607 (or 3921574 counting only the distinct ones).

The product of its (nonzero) digits is 25804800, while the sum is 60.

The spelling of 40815251828736 in words is "forty trillion, eight hundred fifteen billion, two hundred fifty-one million, eight hundred twenty-eight thousand, seven hundred thirty-six".