40849717699 has 8 divisors (see below), whose sum is σ = 48191372288. Its totient is φ = 33884558280.

The previous prime is 40849717633. The next prime is 40849717721. The reversal of 40849717699 is 99671794804.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40849717699 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40849717699.

It is not an unprimeable number, because it can be changed into a prime (40849717199) 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 7 ways as a sum of consecutive naturals, for example, 94123557 + ... + 94123990.

It is an arithmetic number, because the mean of its divisors is an integer number (6023921536).

Almost surely, 2^40849717699 is an apocalyptic number.

40849717699 is a deficient number, since it is larger than the sum of its proper divisors (7341654589).

40849717699 is a wasteful number, since it uses less digits than its factorization.

40849717699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188247585.

The product of its (nonzero) digits is 27433728, while the sum is 64.

The spelling of 40849717699 in words is "forty billion, eight hundred forty-nine million, seven hundred seventeen thousand, six hundred ninety-nine".