940673589973891 has 4 divisors (see below), whose sum is σ = 956617210143000. Its totient is φ = 924729969804784.

The previous prime is 940673589973853. The next prime is 940673589973967. The reversal of 940673589973891 is 198379985376049.

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 940673589973891 - 2³⁷ = 940536151020419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (940673589976891) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7971810084466 + ... + 7971810084583.

It is an arithmetic number, because the mean of its divisors is an integer number (239154302535750).

Almost surely, 2^{940673589973891} is an apocalyptic number.

940673589973891 is a deficient number, since it is larger than the sum of its proper divisors (15943620169109).

940673589973891 is a wasteful number, since it uses less digits than its factorization.

940673589973891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15943620169108.

The product of its (nonzero) digits is 22221319680, while the sum is 88.

The spelling of 940673589973891 in words is "nine hundred forty trillion, six hundred seventy-three billion, five hundred eighty-nine million, nine hundred seventy-three thousand, eight hundred ninety-one".