213894046436 has 24 divisors (see below), whose sum is σ = 432023624256. Its totient is φ = 90761263200.

The previous prime is 213894046423. The next prime is 213894046489. The reversal of 213894046436 is 634640498312.

213894046436 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 37814366 + ... + 37820021.

It is an arithmetic number, because the mean of its divisors is an integer number (18000984344).

Almost surely, 2^213894046436 is an apocalyptic number.

It is an amenable number.

213894046436 is an abundant number, since it is smaller than the sum of its proper divisors (218129577820).

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

213894046436 is a wasteful number, since it uses less digits than its factorization.

213894046436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75634499 (or 75634497 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 50.

The spelling of 213894046436 in words is "two hundred thirteen billion, eight hundred ninety-four million, forty-six thousand, four hundred thirty-six".