40426579776 has 224 divisors, whose sum is σ = 119372359680. Its totient is φ = 11971123200.

The previous prime is 40426579771. The next prime is 40426579799. The reversal of 40426579776 is 67797562404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40426579771) 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, 21514005 + ... + 21515883.

It is an arithmetic number, because the mean of its divisors is an integer number (532912320).

Almost surely, 2^40426579776 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 40426579776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59686179840).

40426579776 is an abundant number, since it is smaller than the sum of its proper divisors (78945779904).

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

40426579776 is a wasteful number, since it uses less digits than its factorization.

40426579776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2133 (or 2123 counting only the distinct ones).

The product of its (nonzero) digits is 17781120, while the sum is 57.

The spelling of 40426579776 in words is "forty billion, four hundred twenty-six million, five hundred seventy-nine thousand, seven hundred seventy-six".