40312019999 has 4 divisors (see below), whose sum is σ = 40314831720. Its totient is φ = 40309208280.

The previous prime is 40312019939. The next prime is 40312020059. The reversal of 40312019999 is 99991021304.

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

It is an interprime number because it is at equal distance from previous prime (40312019939) and next prime (40312020059).

It is a cyclic number.

It is not a de Polignac number, because 40312019999 - 2²⁰ = 40310971423 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 (40312019939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1384244 + ... + 1413065.

It is an arithmetic number, because the mean of its divisors is an integer number (10078707930).

Almost surely, 2^40312019999 is an apocalyptic number.

40312019999 is a deficient number, since it is larger than the sum of its proper divisors (2811721).

40312019999 is a wasteful number, since it uses less digits than its factorization.

40312019999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2811720.

The product of its (nonzero) digits is 157464, while the sum is 47.

The spelling of 40312019999 in words is "forty billion, three hundred twelve million, nineteen thousand, nine hundred ninety-nine".