40424881699 has 4 divisors (see below), whose sum is σ = 40518675360. Its totient is φ = 40331088040.

The previous prime is 40424881663. The next prime is 40424881729. The reversal of 40424881699 is 99618842404.

It is a happy number.

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 40424881699 - 2¹⁷ = 40424750627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40424881639) 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, 46896184 + ... + 46897045.

It is an arithmetic number, because the mean of its divisors is an integer number (10129668840).

Almost surely, 2^40424881699 is an apocalyptic number.

40424881699 is a deficient number, since it is larger than the sum of its proper divisors (93793661).

40424881699 is an equidigital number, since it uses as much as digits as its factorization.

40424881699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93793660.

The product of its (nonzero) digits is 3981312, while the sum is 55.

The spelling of 40424881699 in words is "forty billion, four hundred twenty-four million, eight hundred eighty-one thousand, six hundred ninety-nine".