40003453263 has 4 divisors (see below), whose sum is σ = 53337937688. Its totient is φ = 26668968840.

The previous prime is 40003453247. The next prime is 40003453277. The reversal of 40003453263 is 36235430004.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 40003453263 - 2⁴ = 40003453247 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 40003453263.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40003453283) 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, 6667242208 + ... + 6667242213.

It is an arithmetic number, because the mean of its divisors is an integer number (13334484422).

Almost surely, 2^40003453263 is an apocalyptic number.

40003453263 is a deficient number, since it is larger than the sum of its proper divisors (13334484425).

40003453263 is a wasteful number, since it uses less digits than its factorization.

40003453263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13334484424.

The product of its (nonzero) digits is 25920, while the sum is 30.

Adding to 40003453263 its reverse (36235430004), we get a palindrome (76238883267).

The spelling of 40003453263 in words is "forty billion, three million, four hundred fifty-three thousand, two hundred sixty-three".