5389740781 has 2 divisors, whose sum is σ = 5389740782. Its totient is φ = 5389740780.

The previous prime is 5389740757. The next prime is 5389740803. The reversal of 5389740781 is 1870479835.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5283836100 + 105904681 = 72690^2 + 10291^2 .

It is a cyclic number.

It is not a de Polignac number, because 5389740781 - 2⁹ = 5389740269 is a prime.

It is a super-2 number, since 2×5389740781² = 58098611372748979922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5389740721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2694870390 + 2694870391.

It is an arithmetic number, because the mean of its divisors is an integer number (2694870391).

Almost surely, 2^5389740781 is an apocalyptic number.

It is an amenable number.

5389740781 is a deficient number, since it is larger than the sum of its proper divisors (1).

5389740781 is an equidigital number, since it uses as much as digits as its factorization.

5389740781 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1693440, while the sum is 52.

The square root of 5389740781 is about 73414.8539534065. The cubic root of 5389740781 is about 1753.2988964171.

The spelling of 5389740781 in words is "five billion, three hundred eighty-nine million, seven hundred forty thousand, seven hundred eighty-one".