40423315351 has 4 divisors (see below), whose sum is σ = 40424910400. Its totient is φ = 40421720304.

The previous prime is 40423315321. The next prime is 40423315379. The reversal of 40423315351 is 15351332404.

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 40423315351 - 2⁹ = 40423314839 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 (40423315321) 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, 758886 + ... + 810403.

It is an arithmetic number, because the mean of its divisors is an integer number (10106227600).

Almost surely, 2^40423315351 is an apocalyptic number.

40423315351 is a deficient number, since it is larger than the sum of its proper divisors (1595049).

40423315351 is a wasteful number, since it uses less digits than its factorization.

40423315351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1595048.

The product of its (nonzero) digits is 21600, while the sum is 31.

Adding to 40423315351 its reverse (15351332404), we get a palindrome (55774647755).

The spelling of 40423315351 in words is "forty billion, four hundred twenty-three million, three hundred fifteen thousand, three hundred fifty-one".