40656310971 has 16 divisors (see below), whose sum is σ = 56406357504. Its totient is φ = 26026997984.

The previous prime is 40656310969. The next prime is 40656311051. The reversal of 40656310971 is 17901365604.

It is a cyclic number.

It is not a de Polignac number, because 40656310971 - 2¹ = 40656310969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40656310901) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2712741 + ... + 2727686.

It is an arithmetic number, because the mean of its divisors is an integer number (3525397344).

Almost surely, 2^40656310971 is an apocalyptic number.

40656310971 is a deficient number, since it is larger than the sum of its proper divisors (15750046533).

40656310971 is a wasteful number, since it uses less digits than its factorization.

40656310971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5440530.

The product of its (nonzero) digits is 136080, while the sum is 42.

The spelling of 40656310971 in words is "forty billion, six hundred fifty-six million, three hundred ten thousand, nine hundred seventy-one".