40623604402505 has 4 divisors (see below), whose sum is σ = 48748325283012. Its totient is φ = 32498883522000.

The previous prime is 40623604402499. The next prime is 40623604402517. The reversal of 40623604402505 is 50520440632604.

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 7716722854201 + 32906881548304 = 2777899^2 + 5736452^2 .

It is not a de Polignac number, because 40623604402505 - 2²⁶ = 40623537293641 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4062360440246 + ... + 4062360440255.

It is an arithmetic number, because the mean of its divisors is an integer number (12187081320753).

Almost surely, 2^{40623604402505} is an apocalyptic number.

It is an amenable number.

40623604402505 is a deficient number, since it is larger than the sum of its proper divisors (8124720880507).

40623604402505 is an equidigital number, since it uses as much as digits as its factorization.

40623604402505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8124720880506.

The product of its (nonzero) digits is 691200, while the sum is 41.

The spelling of 40623604402505 in words is "forty trillion, six hundred twenty-three billion, six hundred four million, four hundred two thousand, five hundred five".