64912451 has 2 divisors, whose sum is σ = 64912452. Its totient is φ = 64912450.

The previous prime is 64912433. The next prime is 64912453. The reversal of 64912451 is 15421946.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64912451 - 2¹⁸ = 64650307 is a prime.

Together with 64912453, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (64912453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32456225 + 32456226.

It is an arithmetic number, because the mean of its divisors is an integer number (32456226).

Almost surely, 2^64912451 is an apocalyptic number.

64912451 is a deficient number, since it is larger than the sum of its proper divisors (1).

64912451 is an equidigital number, since it uses as much as digits as its factorization.

64912451 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 32.

The square root of 64912451 is about 8056.8263602985. The cubic root of 64912451 is about 401.8919765360.

The spelling of 64912451 in words is "sixty-four million, nine hundred twelve thousand, four hundred fifty-one".