63846864836 has 12 divisors (see below), whose sum is σ = 112005199740. Its totient is φ = 31845379200.

The previous prime is 63846864761. The next prime is 63846864931.

It is a happy number.

63846864836 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 59465748736 + 4381116100 = 243856^2 + 66190^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19511465 + ... + 19514736.

It is an arithmetic number, because the mean of its divisors is an integer number (9333766645).

Almost surely, 2^63846864836 is an apocalyptic number.

It is an amenable number.

63846864836 is a deficient number, since it is larger than the sum of its proper divisors (48158334904).

63846864836 is a wasteful number, since it uses less digits than its factorization.

63846864836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39026614 (or 39026612 counting only the distinct ones).

The product of its digits is 95551488, while the sum is 62.

The spelling of 63846864836 in words is "sixty-three billion, eight hundred forty-six million, eight hundred sixty-four thousand, eight hundred thirty-six".