939794636761 has 16 divisors (see below), whose sum is σ = 1021221685440. Its totient is φ = 861930478080.

The previous prime is 939794636699. The next prime is 939794636773. The reversal of 939794636761 is 167636497939.

It is a cyclic number.

It is not a de Polignac number, because 939794636761 - 2¹⁹ = 939794112473 is a prime.

It is a super-2 number, since 2×939794636761² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (939794646761) 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 15 ways as a sum of consecutive naturals, for example, 4997500 + ... + 5182141.

It is an arithmetic number, because the mean of its divisors is an integer number (63826355340).

Almost surely, 2^939794636761 is an apocalyptic number.

It is an amenable number.

939794636761 is a deficient number, since it is larger than the sum of its proper divisors (81427048679).

939794636761 is a wasteful number, since it uses less digits than its factorization.

939794636761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10179816.

The product of its digits is 277766496, while the sum is 70.

The spelling of 939794636761 in words is "nine hundred thirty-nine billion, seven hundred ninety-four million, six hundred thirty-six thousand, seven hundred sixty-one".