2049689876 has 24 divisors (see below), whose sum is σ = 3957097704. Its totient is φ = 922936320.

The previous prime is 2049689861. The next prime is 2049689893. The reversal of 2049689876 is 6789869402.

It can be written as a sum of positive squares in 4 ways, for example, as 292068100 + 1757621776 = 17090^2 + 41924^2 .

It is a congruent number.

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, 478565 + ... + 482828.

It is an arithmetic number, because the mean of its divisors is an integer number (164879071).

Almost surely, 2^2049689876 is an apocalyptic number.

2049689876 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

2049689876 is a deficient number, since it is larger than the sum of its proper divisors (1907407828).

2049689876 is a wasteful number, since it uses less digits than its factorization.

2049689876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 961451 (or 961449 counting only the distinct ones).

The product of its (nonzero) digits is 10450944, while the sum is 59.

The square root of 2049689876 is about 45273.5008144941. The cubic root of 2049689876 is about 1270.2700308281.

The spelling of 2049689876 in words is "two billion, forty-nine million, six hundred eighty-nine thousand, eight hundred seventy-six".