2138412464 has 10 divisors (see below), whose sum is σ = 4143174180. Its totient is φ = 1069206224.

The previous prime is 2138412443. The next prime is 2138412481. The reversal of 2138412464 is 4642148312.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66825374 + ... + 66825405.

It is an arithmetic number, because the mean of its divisors is an integer number (414317418).

Almost surely, 2^2138412464 is an apocalyptic number.

It is an amenable number.

2138412464 is a deficient number, since it is larger than the sum of its proper divisors (2004761716).

2138412464 is a wasteful number, since it uses less digits than its factorization.

2138412464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133650787 (or 133650781 counting only the distinct ones).

The product of its digits is 36864, while the sum is 35.

The square root of 2138412464 is about 46242.9720498153. The cubic root of 2138412464 is about 1288.3400044989.

The spelling of 2138412464 in words is "two billion, one hundred thirty-eight million, four hundred twelve thousand, four hundred sixty-four".