40649290776 has 224 divisors, whose sum is σ = 117026460720. Its totient is φ = 13226976000.

The previous prime is 40649290709. The next prime is 40649290789. The reversal of 40649290776 is 67709294604.

It is a happy number.

40649290776 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 57987226 + ... + 57987926.

Almost surely, 2^40649290776 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 40649290776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58513230360).

40649290776 is an abundant number, since it is smaller than the sum of its proper divisors (76377169944).

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

40649290776 is a wasteful number, since it uses less digits than its factorization.

40649290776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 949 (or 930 counting only the distinct ones).

The product of its (nonzero) digits is 4572288, while the sum is 54.

The spelling of 40649290776 in words is "forty billion, six hundred forty-nine million, two hundred ninety thousand, seven hundred seventy-six".