40454767231 has 4 divisors (see below), whose sum is σ = 40515970264. Its totient is φ = 40393564200.

The previous prime is 40454767193. The next prime is 40454767271. The reversal of 40454767231 is 13276745404.

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 40454767231 - 2⁹ = 40454766719 is a prime.

It is a super-2 number, since 2×40454767231² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40454767271) 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, 30600525 + ... + 30601846.

It is an arithmetic number, because the mean of its divisors is an integer number (10128992566).

Almost surely, 2^40454767231 is an apocalyptic number.

40454767231 is a deficient number, since it is larger than the sum of its proper divisors (61203033).

40454767231 is an equidigital number, since it uses as much as digits as its factorization.

40454767231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61203032.

The product of its (nonzero) digits is 564480, while the sum is 43.

The spelling of 40454767231 in words is "forty billion, four hundred fifty-four million, seven hundred sixty-seven thousand, two hundred thirty-one".