40026512423 has 4 divisors (see below), whose sum is σ = 40281458520. Its totient is φ = 39771566328.

The previous prime is 40026512417. The next prime is 40026512437. The reversal of 40026512423 is 32421562004.

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 40026512423 - 2¹⁸ = 40026250279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40026512413) 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, 127472813 + ... + 127473126.

It is an arithmetic number, because the mean of its divisors is an integer number (10070364630).

Almost surely, 2^40026512423 is an apocalyptic number.

40026512423 is a deficient number, since it is larger than the sum of its proper divisors (254946097).

40026512423 is a wasteful number, since it uses less digits than its factorization.

40026512423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254946096.

The product of its (nonzero) digits is 11520, while the sum is 29.

The spelling of 40026512423 in words is "forty billion, twenty-six million, five hundred twelve thousand, four hundred twenty-three".