5061491657 has 2 divisors, whose sum is σ = 5061491658. Its totient is φ = 5061491656.

The previous prime is 5061491639. The next prime is 5061491663. The reversal of 5061491657 is 7561941605.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2751631936 + 2309859721 = 52456^2 + 48061^2 .

It is a cyclic number.

It is not a de Polignac number, because 5061491657 - 2¹⁰ = 5061490633 is a prime.

It is not a weakly prime, because it can be changed into another prime (5061491857) 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, 2530745828 + 2530745829.

It is an arithmetic number, because the mean of its divisors is an integer number (2530745829).

Almost surely, 2^5061491657 is an apocalyptic number.

It is an amenable number.

5061491657 is a deficient number, since it is larger than the sum of its proper divisors (1).

5061491657 is an equidigital number, since it uses as much as digits as its factorization.

5061491657 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 226800, while the sum is 44.

The square root of 5061491657 is about 71144.1610885953. The cubic root of 5061491657 is about 1716.9573548189.

The spelling of 5061491657 in words is "five billion, sixty-one million, four hundred ninety-one thousand, six hundred fifty-seven".