2149646758 has 12 divisors (see below), whose sum is σ = 3750914412. Its totient is φ = 921277140.

The previous prime is 2149646749. The next prime is 2149646761. The reversal of 2149646758 is 8576469412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10967488 + ... + 10967683.

It is an arithmetic number, because the mean of its divisors is an integer number (312576201).

Almost surely, 2^2149646758 is an apocalyptic number.

2149646758 is a deficient number, since it is larger than the sum of its proper divisors (1601267654).

2149646758 is a wasteful number, since it uses less digits than its factorization.

2149646758 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21935187 (or 21935180 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 52.

The square root of 2149646758 is about 46364.2832145608. The cubic root of 2149646758 is about 1290.5921920991.

The spelling of 2149646758 in words is "two billion, one hundred forty-nine million, six hundred forty-six thousand, seven hundred fifty-eight".