40286945839 has 4 divisors (see below), whose sum is σ = 46042223824. Its totient is φ = 34531667856.

The previous prime is 40286945819. The next prime is 40286945879. The reversal of 40286945839 is 93854968204.

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

It is not a de Polignac number, because 40286945839 - 2⁷ = 40286945711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40286945819) 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, 2877638982 + ... + 2877638995.

It is an arithmetic number, because the mean of its divisors is an integer number (11510555956).

Almost surely, 2^40286945839 is an apocalyptic number.

40286945839 is a deficient number, since it is larger than the sum of its proper divisors (5755277985).

40286945839 is an equidigital number, since it uses as much as digits as its factorization.

40286945839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5755277984.

The product of its (nonzero) digits is 14929920, while the sum is 58.

The spelling of 40286945839 in words is "forty billion, two hundred eighty-six million, nine hundred forty-five thousand, eight hundred thirty-nine".