2121349964 has 24 divisors (see below), whose sum is σ = 4057538688. Its totient is φ = 966078720.

The previous prime is 2121349921. The next prime is 2121349987. The reversal of 2121349964 is 4699431212.

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, 501059 + ... + 505274.

It is an arithmetic number, because the mean of its divisors is an integer number (169064112).

Almost surely, 2^2121349964 is an apocalyptic number.

It is an amenable number.

2121349964 is a deficient number, since it is larger than the sum of its proper divisors (1936188724).

2121349964 is a wasteful number, since it uses less digits than its factorization.

2121349964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1006385 (or 1006383 counting only the distinct ones).

The product of its digits is 93312, while the sum is 41.

The square root of 2121349964 is about 46058.1150721564. The cubic root of 2121349964 is about 1284.9042738322.

The spelling of 2121349964 in words is "two billion, one hundred twenty-one million, three hundred forty-nine thousand, nine hundred sixty-four".