64815476458463 has 2 divisors, whose sum is σ = 64815476458464. Its totient is φ = 64815476458462.

The previous prime is 64815476458441. The next prime is 64815476458489. The reversal of 64815476458463 is 36485467451846.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64815476458463 - 2¹⁸ = 64815476196319 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64815476458433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32407738229231 + 32407738229232.

It is an arithmetic number, because the mean of its divisors is an integer number (32407738229232).

Almost surely, 2^{64815476458463} is an apocalyptic number.

64815476458463 is a deficient number, since it is larger than the sum of its proper divisors (1).

64815476458463 is an equidigital number, since it uses as much as digits as its factorization.

64815476458463 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1857945600, while the sum is 71.

The spelling of 64815476458463 in words is "sixty-four trillion, eight hundred fifteen billion, four hundred seventy-six million, four hundred fifty-eight thousand, four hundred sixty-three".