65047412491 has 2 divisors, whose sum is σ = 65047412492. Its totient is φ = 65047412490.

The previous prime is 65047412461. The next prime is 65047412497. The reversal of 65047412491 is 19421474056.

65047412491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65047412491 - 2⁵ = 65047412459 is a prime.

It is not a weakly prime, because it can be changed into another prime (65047412497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32523706245 + 32523706246.

It is an arithmetic number, because the mean of its divisors is an integer number (32523706246).

Almost surely, 2^65047412491 is an apocalyptic number.

65047412491 is a deficient number, since it is larger than the sum of its proper divisors (1).

65047412491 is an equidigital number, since it uses as much as digits as its factorization.

65047412491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 241920, while the sum is 43.

The spelling of 65047412491 in words is "sixty-five billion, forty-seven million, four hundred twelve thousand, four hundred ninety-one".