40871851723 has 4 divisors (see below), whose sum is σ = 40883230728. Its totient is φ = 40860472720.

The previous prime is 40871851703. The next prime is 40871851733. The reversal of 40871851723 is 32715817804.

40871851723 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40871851723 - 2¹⁷ = 40871720651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40871851703) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5684113 + ... + 5691298.

It is an arithmetic number, because the mean of its divisors is an integer number (10220807682).

Almost surely, 2^40871851723 is an apocalyptic number.

40871851723 is a deficient number, since it is larger than the sum of its proper divisors (11379005).

40871851723 is a wasteful number, since it uses less digits than its factorization.

40871851723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11379004.

The product of its (nonzero) digits is 376320, while the sum is 46.

The spelling of 40871851723 in words is "forty billion, eight hundred seventy-one million, eight hundred fifty-one thousand, seven hundred twenty-three".