463840866593 has 4 divisors (see below), whose sum is σ = 499520933268. Its totient is φ = 428160799920.

The previous prime is 463840866551. The next prime is 463840866607. The reversal of 463840866593 is 395668048364.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 154184231569 + 309656635024 = 392663^2 + 556468^2 .

It is a cyclic number.

It is not a de Polignac number, because 463840866593 - 2¹⁰ = 463840865569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (463840866493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17840033318 + ... + 17840033343.

It is an arithmetic number, because the mean of its divisors is an integer number (124880233317).

Almost surely, 2^463840866593 is an apocalyptic number.

It is an amenable number.

463840866593 is a deficient number, since it is larger than the sum of its proper divisors (35680066675).

463840866593 is a wasteful number, since it uses less digits than its factorization.

463840866593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35680066674.

The product of its (nonzero) digits is 89579520, while the sum is 62.

The spelling of 463840866593 in words is "four hundred sixty-three billion, eight hundred forty million, eight hundred sixty-six thousand, five hundred ninety-three".