5637461491 has 2 divisors, whose sum is σ = 5637461492. Its totient is φ = 5637461490.

The previous prime is 5637461449. The next prime is 5637461537. The reversal of 5637461491 is 1941647365.

It is an a-pointer prime, because the next prime (5637461537) can be obtained adding 5637461491 to its sum of digits (46).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5637461491 - 2⁷ = 5637461363 is a prime.

It is not a weakly prime, because it can be changed into another prime (5637462491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2818730745 + 2818730746.

It is an arithmetic number, because the mean of its divisors is an integer number (2818730746).

Almost surely, 2^5637461491 is an apocalyptic number.

5637461491 is a deficient number, since it is larger than the sum of its proper divisors (1).

5637461491 is an equidigital number, since it uses as much as digits as its factorization.

5637461491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 544320, while the sum is 46.

The square root of 5637461491 is about 75083.0306460787. The cubic root of 5637461491 is about 1779.7589930610.

The spelling of 5637461491 in words is "five billion, six hundred thirty-seven million, four hundred sixty-one thousand, four hundred ninety-one".