65457100784219 has 2 divisors, whose sum is σ = 65457100784220. Its totient is φ = 65457100784218.

The previous prime is 65457100784087. The next prime is 65457100784233. The reversal of 65457100784219 is 91248700175456.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65457100784219 is a prime.

It is a super-2 number, since 2×65457100784219² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (65457100784279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32728550392109 + 32728550392110.

It is an arithmetic number, because the mean of its divisors is an integer number (32728550392110).

Almost surely, 2^{65457100784219} is an apocalyptic number.

65457100784219 is a deficient number, since it is larger than the sum of its proper divisors (1).

65457100784219 is an equidigital number, since it uses as much as digits as its factorization.

65457100784219 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16934400, while the sum is 59.

The spelling of 65457100784219 in words is "sixty-five trillion, four hundred fifty-seven billion, one hundred million, seven hundred eighty-four thousand, two hundred nineteen".