213633864513999 has 72 divisors (see below), whose sum is σ = 323870679699840. Its totient is φ = 135687124321056.

The previous prime is 213633864513991. The next prime is 213633864514001. The reversal of 213633864513999 is 999315468336312.

213633864513999 is a `hidden beast` number, since 2 + 1 + 3 + 6 + 3 + 3 + 86 + 451 + 3 + 9 + 99 = 666.

It is not a de Polignac number, because 213633864513999 - 2³ = 213633864513991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213633864513991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1340603644 + ... + 1340762990.

It is an arithmetic number, because the mean of its divisors is an integer number (4498203884720).

Almost surely, 2^{213633864513999} is an apocalyptic number.

213633864513999 is a deficient number, since it is larger than the sum of its proper divisors (110236815185841).

213633864513999 is a wasteful number, since it uses less digits than its factorization.

213633864513999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160521 (or 160495 counting only the distinct ones).

The product of its digits is 680244480, while the sum is 72.

The spelling of 213633864513999 in words is "two hundred thirteen trillion, six hundred thirty-three billion, eight hundred sixty-four million, five hundred thirteen thousand, nine hundred ninety-nine".