2938713881 has 2 divisors, whose sum is σ = 2938713882. Its totient is φ = 2938713880.

The previous prime is 2938713859. The next prime is 2938713919. The reversal of 2938713881 is 1883178392.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2304480025 + 634233856 = 48005^2 + 25184^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2938713881 is a prime.

It is a super-2 number, since 2×2938713881² = 17272078548764164322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2938713781) 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 as a sum of consecutive naturals, namely, 1469356940 + 1469356941.

It is an arithmetic number, because the mean of its divisors is an integer number (1469356941).

Almost surely, 2^2938713881 is an apocalyptic number.

It is an amenable number.

2938713881 is a deficient number, since it is larger than the sum of its proper divisors (1).

2938713881 is an equidigital number, since it uses as much as digits as its factorization.

2938713881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 580608, while the sum is 50.

The square root of 2938713881 is about 54209.9057460904. The cubic root of 2938713881 is about 1432.3608257185.

The spelling of 2938713881 in words is "two billion, nine hundred thirty-eight million, seven hundred thirteen thousand, eight hundred eighty-one".