2138564846 has 8 divisors (see below), whose sum is σ = 3499469784. Its totient is φ = 972074920.

The previous prime is 2138564789. The next prime is 2138564867. The reversal of 2138564846 is 6484658312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2138564846.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 48603725 + ... + 48603768.

It is an arithmetic number, because the mean of its divisors is an integer number (437433723).

Almost surely, 2^2138564846 is an apocalyptic number.

2138564846 is a deficient number, since it is larger than the sum of its proper divisors (1360904938).

2138564846 is a wasteful number, since it uses less digits than its factorization.

2138564846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97207506.

The product of its digits is 1105920, while the sum is 47.

The square root of 2138564846 is about 46244.6196438029. The cubic root of 2138564846 is about 1288.3706058862.

The spelling of 2138564846 in words is "two billion, one hundred thirty-eight million, five hundred sixty-four thousand, eight hundred forty-six".