40673407723 has 4 divisors (see below), whose sum is σ = 43802131408. Its totient is φ = 37544684040.

The previous prime is 40673407651. The next prime is 40673407763. The reversal of 40673407723 is 32770437604.

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 40673407723 - 2¹³ = 40673399531 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40673407723.

It is not an unprimeable number, because it can be changed into a prime (40673407763) 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, 1564361823 + ... + 1564361848.

It is an arithmetic number, because the mean of its divisors is an integer number (10950532852).

Almost surely, 2^40673407723 is an apocalyptic number.

40673407723 is a deficient number, since it is larger than the sum of its proper divisors (3128723685).

40673407723 is a wasteful number, since it uses less digits than its factorization.

40673407723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3128723684.

The product of its (nonzero) digits is 592704, while the sum is 43.

The spelling of 40673407723 in words is "forty billion, six hundred seventy-three million, four hundred seven thousand, seven hundred twenty-three".