213874445464 has 8 divisors (see below), whose sum is σ = 401014585260. Its totient is φ = 106937222728.

The previous prime is 213874445441. The next prime is 213874445471. The reversal of 213874445464 is 464544478312.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13367152834 + ... + 13367152849.

Almost surely, 2^213874445464 is an apocalyptic number.

It is an amenable number.

213874445464 is a deficient number, since it is larger than the sum of its proper divisors (187140139796).

213874445464 is a wasteful number, since it uses less digits than its factorization.

213874445464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26734305689 (or 26734305685 counting only the distinct ones).

The product of its digits is 10321920, while the sum is 52.

The spelling of 213874445464 in words is "two hundred thirteen billion, eight hundred seventy-four million, four hundred forty-five thousand, four hundred sixty-four".