40626454433 has 4 divisors (see below), whose sum is σ = 40669813380. Its totient is φ = 40583095488.

The previous prime is 40626454391. The next prime is 40626454439. The reversal of 40626454433 is 33445462604.

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

It can be written as a sum of positive squares in 2 ways, for example, as 12641179489 + 27985274944 = 112433^2 + 167288^2 .

It is a cyclic number.

It is not a de Polignac number, because 40626454433 - 2²⁴ = 40609677217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40626454439) 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, 21678068 + ... + 21679941.

It is an arithmetic number, because the mean of its divisors is an integer number (10167453345).

Almost surely, 2^40626454433 is an apocalyptic number.

It is an amenable number.

40626454433 is a deficient number, since it is larger than the sum of its proper divisors (43358947).

40626454433 is an equidigital number, since it uses as much as digits as its factorization.

40626454433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43358946.

The product of its (nonzero) digits is 829440, while the sum is 41.

The spelling of 40626454433 in words is "forty billion, six hundred twenty-six million, four hundred fifty-four thousand, four hundred thirty-three".