64440482024285 has 16 divisors (see below), whose sum is σ = 79419919508400. Its totient is φ = 50158206637056.

The previous prime is 64440482024279. The next prime is 64440482024309. The reversal of 64440482024285 is 58242028404446.

It can be written as a sum of positive squares in 8 ways, for example, as 16150407825049 + 48290074199236 = 4018757^2 + 6949106^2 .

It is a cyclic number.

It is not a de Polignac number, because 64440482024285 - 2¹⁸ = 64440481762141 is a prime.

It is a super-2 number, since 2×64440482024285² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7757711 + ... + 13750019.

It is an arithmetic number, because the mean of its divisors is an integer number (4963744969275).

Almost surely, 2^{64440482024285} is an apocalyptic number.

It is an amenable number.

64440482024285 is a deficient number, since it is larger than the sum of its proper divisors (14979437484115).

64440482024285 is a wasteful number, since it uses less digits than its factorization.

64440482024285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6050480.

The product of its (nonzero) digits is 15728640, while the sum is 53.

The spelling of 64440482024285 in words is "sixty-four trillion, four hundred forty billion, four hundred eighty-two million, twenty-four thousand, two hundred eighty-five".