5061491639 has 2 divisors, whose sum is σ = 5061491640. Its totient is φ = 5061491638.

The previous prime is 5061491629. The next prime is 5061491657. The reversal of 5061491639 is 9361941605.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5061491639 - 2¹⁶ = 5061426103 is a prime.

It is a super-2 number, since 2×5061491639² = 51237395223333812642, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 5061491639.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5061491629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2530745819 + 2530745820.

It is an arithmetic number, because the mean of its divisors is an integer number (2530745820).

Almost surely, 2^5061491639 is an apocalyptic number.

5061491639 is a deficient number, since it is larger than the sum of its proper divisors (1).

5061491639 is an equidigital number, since it uses as much as digits as its factorization.

5061491639 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 174960, while the sum is 44.

The square root of 5061491639 is about 71144.1609620916. The cubic root of 5061491639 is about 1716.9573527836.

The spelling of 5061491639 in words is "five billion, sixty-one million, four hundred ninety-one thousand, six hundred thirty-nine".