40899474899 has 4 divisors (see below), whose sum is σ = 41020838664. Its totient is φ = 40778111136.

The previous prime is 40899474893. The next prime is 40899474919. The reversal of 40899474899 is 99847499804.

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 40899474899 - 2⁸ = 40899474643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40899474893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60681377 + ... + 60682050.

It is an arithmetic number, because the mean of its divisors is an integer number (10255209666).

Almost surely, 2^40899474899 is an apocalyptic number.

40899474899 is a deficient number, since it is larger than the sum of its proper divisors (121363765).

40899474899 is a wasteful number, since it uses less digits than its factorization.

40899474899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121363764.

The product of its (nonzero) digits is 188116992, while the sum is 71.

The spelling of 40899474899 in words is "forty billion, eight hundred ninety-nine million, four hundred seventy-four thousand, eight hundred ninety-nine".