65412619 has 2 divisors, whose sum is σ = 65412620. Its totient is φ = 65412618.

The previous prime is 65412601. The next prime is 65412643. The reversal of 65412619 is 91621456.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65412619 - 2⁵ = 65412587 is a prime.

It is a super-2 number, since 2×65412619² = 8557621448878322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (65412689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32706309 + 32706310.

It is an arithmetic number, because the mean of its divisors is an integer number (32706310).

Almost surely, 2^65412619 is an apocalyptic number.

65412619 is a deficient number, since it is larger than the sum of its proper divisors (1).

65412619 is an equidigital number, since it uses as much as digits as its factorization.

65412619 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12960, while the sum is 34.

The square root of 65412619 is about 8087.8068102546. The cubic root of 65412619 is about 402.9215654361.

The spelling of 65412619 in words is "sixty-five million, four hundred twelve thousand, six hundred nineteen".