40860463644 has 288 divisors, whose sum is σ = 139987201536. Its totient is φ = 9704240640.

The previous prime is 40860463643. The next prime is 40860463691. The reversal of 40860463644 is 44636406804.

40860463644 is a `hidden beast` number, since 4 + 0 + 8 + 6 + 0 + 4 + 636 + 4 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 40860463644.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40860463643) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3850554 + ... + 3861150.

It is an arithmetic number, because the mean of its divisors is an integer number (486066672).

Almost surely, 2^40860463644 is an apocalyptic number.

40860463644 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40860463644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69993600768).

40860463644 is an abundant number, since it is smaller than the sum of its proper divisors (99126737892).

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

40860463644 is a wasteful number, since it uses less digits than its factorization.

40860463644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10745 (or 10740 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 45.

The spelling of 40860463644 in words is "forty billion, eight hundred sixty million, four hundred sixty-three thousand, six hundred forty-four".