40826888640 has 84 divisors (see below), whose sum is σ = 140427495624. Its totient is φ = 10887169536.

The previous prime is 40826888579. The next prime is 40826888653. The reversal of 40826888640 is 4688862804.

It is a super-2 number, since 2×40826888640² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7085122 + ... + 7090881.

Almost surely, 2^40826888640 is an apocalyptic number.

40826888640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40826888640 is an abundant number, since it is smaller than the sum of its proper divisors (99600606984).

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

40826888640 is a wasteful number, since it uses less digits than its factorization.

40826888640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14176026 (or 14176013 counting only the distinct ones).

The product of its (nonzero) digits is 4718592, while the sum is 54.

The spelling of 40826888640 in words is "forty billion, eight hundred twenty-six million, eight hundred eighty-eight thousand, six hundred forty".