40623603836436 has 192 divisors, whose sum is σ = 112764882585600. Its totient is φ = 12609597369600.

The previous prime is 40623603836407. The next prime is 40623603836437. The reversal of 40623603836436 is 63463830632604.

It is a happy number.

40623603836436 is a `hidden beast` number, since 4 + 0 + 6 + 23 + 603 + 8 + 3 + 6 + 4 + 3 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40623603836437) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 47802856 + ... + 48645248.

It is an arithmetic number, because the mean of its divisors is an integer number (587317096800).

Almost surely, 2^{40623603836436} 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 40623603836436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56382441292800).

40623603836436 is an abundant number, since it is smaller than the sum of its proper divisors (72141278749164).

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

40623603836436 is a wasteful number, since it uses less digits than its factorization.

40623603836436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 842827 (or 842819 counting only the distinct ones).

The product of its (nonzero) digits is 26873856, while the sum is 54.

The spelling of 40623603836436 in words is "forty trillion, six hundred twenty-three billion, six hundred three million, eight hundred thirty-six thousand, four hundred thirty-six".