40899473099 has 4 divisors (see below), whose sum is σ = 41509913064. Its totient is φ = 40289033136.

The previous prime is 40899473033. The next prime is 40899473123. The reversal of 40899473099 is 99037499804.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40899473099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40899473599) 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, 305219882 + ... + 305220015.

It is an arithmetic number, because the mean of its divisors is an integer number (10377478266).

Almost surely, 2^40899473099 is an apocalyptic number.

40899473099 is a deficient number, since it is larger than the sum of its proper divisors (610439965).

40899473099 is an equidigital number, since it uses as much as digits as its factorization.

40899473099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 610439964.

The product of its (nonzero) digits is 17635968, while the sum is 62.

The spelling of 40899473099 in words is "forty billion, eight hundred ninety-nine million, four hundred seventy-three thousand, ninety-nine".