40256489045 has 4 divisors (see below), whose sum is σ = 48307786860. Its totient is φ = 32205191232.

The previous prime is 40256489027. The next prime is 40256489089. The reversal of 40256489045 is 54098465204.

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 24475350916 + 15781138129 = 156446^2 + 125623^2 .

It is a cyclic number.

It is not a de Polignac number, because 40256489045 - 2⁶ = 40256488981 is a prime.

It is a congruent 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, 4025648900 + ... + 4025648909.

It is an arithmetic number, because the mean of its divisors is an integer number (12076946715).

Almost surely, 2^40256489045 is an apocalyptic number.

It is an amenable number.

40256489045 is a deficient number, since it is larger than the sum of its proper divisors (8051297815).

40256489045 is an equidigital number, since it uses as much as digits as its factorization.

40256489045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8051297814.

The product of its (nonzero) digits is 1382400, while the sum is 47.

The spelling of 40256489045 in words is "forty billion, two hundred fifty-six million, four hundred eighty-nine thousand, forty-five".