40657647896 has 64 divisors (see below), whose sum is σ = 78960420000. Its totient is φ = 19617002496.

The previous prime is 40657647889. The next prime is 40657647931. The reversal of 40657647896 is 69874675604.

40657647896 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×40657647896² (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 15 ways as a sum of consecutive naturals, for example, 6420860 + ... + 6427188.

Almost surely, 2^40657647896 is an apocalyptic number.

It is an amenable number.

40657647896 is a deficient number, since it is larger than the sum of its proper divisors (38302772104).

40657647896 is a wasteful number, since it uses less digits than its factorization.

40657647896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6636 (or 6632 counting only the distinct ones).

The product of its (nonzero) digits is 60963840, while the sum is 62.

The spelling of 40657647896 in words is "forty billion, six hundred fifty-seven million, six hundred forty-seven thousand, eight hundred ninety-six".