40451040139 has 2 divisors, whose sum is σ = 40451040140. Its totient is φ = 40451040138.

The previous prime is 40451040073. The next prime is 40451040143. The reversal of 40451040139 is 93104015404.

40451040139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40451040139 - 2⁹ = 40451039627 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40451040139.

It is not a weakly prime, because it can be changed into another prime (40451040199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20225520069 + 20225520070.

It is an arithmetic number, because the mean of its divisors is an integer number (20225520070).

Almost surely, 2^40451040139 is an apocalyptic number.

40451040139 is a deficient number, since it is larger than the sum of its proper divisors (1).

40451040139 is an equidigital number, since it uses as much as digits as its factorization.

40451040139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 31.

The spelling of 40451040139 in words is "forty billion, four hundred fifty-one million, forty thousand, one hundred thirty-nine".