40771116861 has 16 divisors (see below), whose sum is σ = 55313502720. Its totient is φ = 26705248560.

The previous prime is 40771116857. The next prime is 40771116863. The reversal of 40771116861 is 16861117704.

It is not a de Polignac number, because 40771116861 - 2² = 40771116857 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40771116863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 261186 + ... + 386988.

It is an arithmetic number, because the mean of its divisors is an integer number (3457093920).

Almost surely, 2^40771116861 is an apocalyptic number.

It is an amenable number.

40771116861 is a deficient number, since it is larger than the sum of its proper divisors (14542385859).

40771116861 is a wasteful number, since it uses less digits than its factorization.

40771116861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127696.

The product of its (nonzero) digits is 56448, while the sum is 42.

The spelling of 40771116861 in words is "forty billion, seven hundred seventy-one million, one hundred sixteen thousand, eight hundred sixty-one".