5207691949 has 2 divisors, whose sum is σ = 5207691950. Its totient is φ = 5207691948.

The previous prime is 5207691943. The next prime is 5207691961. The reversal of 5207691949 is 9491967025.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3629219049 + 1578472900 = 60243^2 + 39730^2 .

It is a cyclic number.

It is not a de Polignac number, because 5207691949 - 2³ = 5207691941 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5207691896 and 5207691905.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5207691941) 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, 2603845974 + 2603845975.

It is an arithmetic number, because the mean of its divisors is an integer number (2603845975).

Almost surely, 2^5207691949 is an apocalyptic number.

It is an amenable number.

5207691949 is a deficient number, since it is larger than the sum of its proper divisors (1).

5207691949 is an equidigital number, since it uses as much as digits as its factorization.

5207691949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1224720, while the sum is 52.

The square root of 5207691949 is about 72164.3398708808. The cubic root of 5207691949 is about 1733.3320291862.

The spelling of 5207691949 in words is "five billion, two hundred seven million, six hundred ninety-one thousand, nine hundred forty-nine".