40023263477 has 4 divisors (see below), whose sum is σ = 40033050816. Its totient is φ = 40013476140.

The previous prime is 40023263471. The next prime is 40023263491. The reversal of 40023263477 is 77436232004.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40023263477 - 2²⁰ = 40022214901 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40023263477.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40023263471) 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, 4887533 + ... + 4895714.

It is an arithmetic number, because the mean of its divisors is an integer number (10008262704).

Almost surely, 2^40023263477 is an apocalyptic number.

It is an amenable number.

40023263477 is a deficient number, since it is larger than the sum of its proper divisors (9787339).

40023263477 is an equidigital number, since it uses as much as digits as its factorization.

40023263477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9787338.

The product of its (nonzero) digits is 169344, while the sum is 38.

The spelling of 40023263477 in words is "forty billion, twenty-three million, two hundred sixty-three thousand, four hundred seventy-seven".