40403633451 has 4 divisors (see below), whose sum is σ = 53871511272. Its totient is φ = 26935755632.

The previous prime is 40403633449. The next prime is 40403633453. The reversal of 40403633451 is 15433630404.

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

It is an interprime number because it is at equal distance from previous prime (40403633449) and next prime (40403633453).

It is a cyclic number.

It is not a de Polignac number, because 40403633451 - 2¹ = 40403633449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40403633453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6733938906 + ... + 6733938911.

It is an arithmetic number, because the mean of its divisors is an integer number (13467877818).

Almost surely, 2^40403633451 is an apocalyptic number.

40403633451 is a deficient number, since it is larger than the sum of its proper divisors (13467877821).

40403633451 is a wasteful number, since it uses less digits than its factorization.

40403633451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13467877820.

The product of its (nonzero) digits is 51840, while the sum is 33.

The spelling of 40403633451 in words is "forty billion, four hundred three million, six hundred thirty-three thousand, four hundred fifty-one".