40312388899 has 4 divisors (see below), whose sum is σ = 40355412664. Its totient is φ = 40269365136.

The previous prime is 40312388839. The next prime is 40312388947. The reversal of 40312388899 is 99888321304.

40312388899 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 40312388899 - 2⁷ = 40312388771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40312388839) 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, 21510477 + ... + 21512350.

It is an arithmetic number, because the mean of its divisors is an integer number (10088853166).

Almost surely, 2^40312388899 is an apocalyptic number.

40312388899 is a deficient number, since it is larger than the sum of its proper divisors (43023765).

40312388899 is an equidigital number, since it uses as much as digits as its factorization.

40312388899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43023764.

The product of its (nonzero) digits is 2985984, while the sum is 55.

The spelling of 40312388899 in words is "forty billion, three hundred twelve million, three hundred eighty-eight thousand, eight hundred ninety-nine".