63854645836 has 6 divisors (see below), whose sum is σ = 111745630220. Its totient is φ = 31927322916.

The previous prime is 63854645821. The next prime is 63854645857.

63854645836 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7981830726 + ... + 7981830733.

Almost surely, 2^63854645836 is an apocalyptic number.

It is an amenable number.

63854645836 is a deficient number, since it is larger than the sum of its proper divisors (47890984384).

63854645836 is a wasteful number, since it uses less digits than its factorization.

63854645836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15963661463 (or 15963661461 counting only the distinct ones).

The product of its digits is 49766400, while the sum is 58.

The spelling of 63854645836 in words is "sixty-three billion, eight hundred fifty-four million, six hundred forty-five thousand, eight hundred thirty-six".