40451234523 has 64 divisors (see below), whose sum is σ = 64806223872. Its totient is φ = 21957661440.

The previous prime is 40451234519. The next prime is 40451234531. The reversal of 40451234523 is 32543215404.

It is not a de Polignac number, because 40451234523 - 2² = 40451234519 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40451234513) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13650640 + ... + 13653602.

It is an arithmetic number, because the mean of its divisors is an integer number (1012597248).

Almost surely, 2^40451234523 is an apocalyptic number.

40451234523 is a deficient number, since it is larger than the sum of its proper divisors (24354989349).

40451234523 is a wasteful number, since it uses less digits than its factorization.

40451234523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3384.

The product of its (nonzero) digits is 57600, while the sum is 33.

Adding to 40451234523 its reverse (32543215404), we get a palindrome (72994449927).

The spelling of 40451234523 in words is "forty billion, four hundred fifty-one million, two hundred thirty-four thousand, five hundred twenty-three".