939171881157 has 8 divisors (see below), whose sum is σ = 1252251337920. Its totient is φ = 626103505920.

The previous prime is 939171881129. The next prime is 939171881159. The reversal of 939171881157 is 751188171939.

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

It is not a de Polignac number, because 939171881157 - 2⁷ = 939171881029 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 939171881157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (939171881159) 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, 2570569 + ... + 2913102.

It is an arithmetic number, because the mean of its divisors is an integer number (156531417240).

Almost surely, 2^939171881157 is an apocalyptic number.

It is an amenable number.

939171881157 is a deficient number, since it is larger than the sum of its proper divisors (313079456763).

939171881157 is a wasteful number, since it uses less digits than its factorization.

939171881157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5540763.

The product of its digits is 3810240, while the sum is 60.

The spelling of 939171881157 in words is "nine hundred thirty-nine billion, one hundred seventy-one million, eight hundred eighty-one thousand, one hundred fifty-seven".