939141242649 has 135 divisors (see below), whose sum is σ = 1503560385327. Its totient is φ = 584153754912.

The previous prime is 939141242573. The next prime is 939141242723. The reversal of 939141242649 is 946242141939.

The square root of 939141242649 is 969093.

It is a perfect power (a square), and thus also a powerful number.

939141242649 is a `hidden beast` number, since 9 + 39 + 141 + 2 + 426 + 49 = 666.

It can be written as a sum of positive squares in only one way, i.e., 492462887049 + 446678355600 = 701757^2 + 668340^2 .

It is not a de Polignac number, because 939141242649 - 2²⁵ = 939107688217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 939141242595 and 939141242604.

It is not an unprimeable number, because it can be changed into a prime (939141242749) by changing a digit.

It is a polite number, since it can be written in 134 ways as a sum of consecutive naturals, for example, 11887863792 + ... + 11887863870.

Almost surely, 2^939141242649 is an apocalyptic number.

939141242649 is the 969093-rd square number.

939141242649 is the 484547-th centered octagonal number.

It is an amenable number.

939141242649 is a deficient number, since it is larger than the sum of its proper divisors (564419142678).

939141242649 is an frugal number, since it uses more digits than its factorization.

939141242649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322 (or 158 counting only the distinct ones).

The product of its digits is 3359232, while the sum is 54.

The spelling of 939141242649 in words is "nine hundred thirty-nine billion, one hundred forty-one million, two hundred forty-two thousand, six hundred forty-nine".