65786832493 has 2 divisors, whose sum is σ = 65786832494. Its totient is φ = 65786832492.

The previous prime is 65786832487. The next prime is 65786832533. The reversal of 65786832493 is 39423868756.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60911720809 + 4875111684 = 246803^2 + 69822^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65786832493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65786832413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32893416246 + 32893416247.

It is an arithmetic number, because the mean of its divisors is an integer number (32893416247).

Almost surely, 2^65786832493 is an apocalyptic number.

It is an amenable number.

65786832493 is a deficient number, since it is larger than the sum of its proper divisors (1).

65786832493 is an equidigital number, since it uses as much as digits as its factorization.

65786832493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52254720, while the sum is 61.

The spelling of 65786832493 in words is "sixty-five billion, seven hundred eighty-six million, eight hundred thirty-two thousand, four hundred ninety-three".