213403284768 has 48 divisors (see below), whose sum is σ = 578254070016. Its totient is φ = 68839768320.

The previous prime is 213403284733. The next prime is 213403284823. The reversal of 213403284768 is 867482304312.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35851071 + ... + 35857022.

It is an arithmetic number, because the mean of its divisors is an integer number (12046959792).

Almost surely, 2^213403284768 is an apocalyptic number.

It is an amenable number.

213403284768 is an abundant number, since it is smaller than the sum of its proper divisors (364850785248).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213403284768 is a wasteful number, since it uses less digits than its factorization.

213403284768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71708137 (or 71708129 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 48.

The spelling of 213403284768 in words is "two hundred thirteen billion, four hundred three million, two hundred eighty-four thousand, seven hundred sixty-eight".