40356423533 has 16 divisors (see below), whose sum is σ = 41667091200. Its totient is φ = 39061968000.

The previous prime is 40356423473. The next prime is 40356423563. The reversal of 40356423533 is 33532465304.

It is a cyclic number.

It is not a de Polignac number, because 40356423533 - 2⁶ = 40356423469 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 (40356423563) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5487743 + ... + 5495091.

It is an arithmetic number, because the mean of its divisors is an integer number (2604193200).

Almost surely, 2^40356423533 is an apocalyptic number.

It is an amenable number.

40356423533 is a deficient number, since it is larger than the sum of its proper divisors (1310667667).

40356423533 is a wasteful number, since it uses less digits than its factorization.

40356423533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8428.

The product of its (nonzero) digits is 388800, while the sum is 38.

Adding to 40356423533 its reverse (33532465304), we get a palindrome (73888888837).

The spelling of 40356423533 in words is "forty billion, three hundred fifty-six million, four hundred twenty-three thousand, five hundred thirty-three".