64440680483 has 2 divisors, whose sum is σ = 64440680484. Its totient is φ = 64440680482.

The previous prime is 64440680461. The next prime is 64440680527. The reversal of 64440680483 is 38408604446.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64440680483 - 2⁶ = 64440680419 is a prime.

It is a super-2 number, since 2×64440680483² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (64440680413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32220340241 + 32220340242.

It is an arithmetic number, because the mean of its divisors is an integer number (32220340242).

Almost surely, 2^64440680483 is an apocalyptic number.

64440680483 is a deficient number, since it is larger than the sum of its proper divisors (1).

64440680483 is an equidigital number, since it uses as much as digits as its factorization.

64440680483 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1769472, while the sum is 47.

The spelling of 64440680483 in words is "sixty-four billion, four hundred forty million, six hundred eighty thousand, four hundred eighty-three".