40432424451 has 4 divisors (see below), whose sum is σ = 53909899272. Its totient is φ = 26954949632.

The previous prime is 40432424393. The next prime is 40432424471. The reversal of 40432424451 is 15442423404.

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 40432424451 - 2¹¹ = 40432422403 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40432424471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6738737406 + ... + 6738737411.

It is an arithmetic number, because the mean of its divisors is an integer number (13477474818).

Almost surely, 2^40432424451 is an apocalyptic number.

40432424451 is a deficient number, since it is larger than the sum of its proper divisors (13477474821).

40432424451 is a wasteful number, since it uses less digits than its factorization.

40432424451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13477474820.

The product of its (nonzero) digits is 61440, while the sum is 33.

Adding to 40432424451 its reverse (15442423404), we get a palindrome (55874847855).

The spelling of 40432424451 in words is "forty billion, four hundred thirty-two million, four hundred twenty-four thousand, four hundred fifty-one".