40706871694889 has 4 divisors (see below), whose sum is σ = 40712329119120. Its totient is φ = 40701414270660.

The previous prime is 40706871694877. The next prime is 40706871694967. The reversal of 40706871694889 is 98849617860704.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40706871694889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40706871694589) 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, 2728700927 + ... + 2728715844.

It is an arithmetic number, because the mean of its divisors is an integer number (10178082279780).

Almost surely, 2^{40706871694889} is an apocalyptic number.

It is an amenable number.

40706871694889 is a deficient number, since it is larger than the sum of its proper divisors (5457424231).

40706871694889 is an equidigital number, since it uses as much as digits as its factorization.

40706871694889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5457424230.

The product of its (nonzero) digits is 1170505728, while the sum is 77.

The spelling of 40706871694889 in words is "forty trillion, seven hundred six billion, eight hundred seventy-one million, six hundred ninety-four thousand, eight hundred eighty-nine".