4327139961 has 15 divisors (see below), whose sum is σ = 6464883711. Its totient is φ = 2884365288.

The previous prime is 4327139951. The next prime is 4327139963. The reversal of 4327139961 is 1699317234.

The square root of 4327139961 is 65781.

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

4327139961 is a `hidden beast` number, since 432 + 71 + 3 + 99 + 61 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1912400361 + 2414739600 = 43731^2 + 49140^2 .

It is not a de Polignac number, because 4327139961 - 2⁹ = 4327139449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4327139963) 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 14 ways as a sum of consecutive naturals, for example, 588375 + ... + 595683.

Almost surely, 2^4327139961 is an apocalyptic number.

4327139961 is the 65781-st square number.

4327139961 is the 32891-st centered octagonal number.

It is an amenable number.

4327139961 is a deficient number, since it is larger than the sum of its proper divisors (2137743750).

4327139961 is an frugal number, since it uses more digits than its factorization.

4327139961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14630 (or 7312 counting only the distinct ones).

The product of its digits is 244944, while the sum is 45.

The cubic root of 4327139961 is about 1629.5473370110.

The spelling of 4327139961 in words is "four billion, three hundred twenty-seven million, one hundred thirty-nine thousand, nine hundred sixty-one".