2149676880 has 80 divisors (see below), whose sum is σ = 7176624000. Its totient is φ = 529150464.

The previous prime is 2149676729. The next prime is 2149676909. The reversal of 2149676880 is 886769412.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×2149676880² = 9242221376813068800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 341380 + ... + 347619.

It is an arithmetic number, because the mean of its divisors is an integer number (89707800).

Almost surely, 2^2149676880 is an apocalyptic number.

2149676880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2149676880 is an abundant number, since it is smaller than the sum of its proper divisors (5026947120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2149676880 is a wasteful number, since it uses less digits than its factorization.

2149676880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689028 (or 689022 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 51.

The square root of 2149676880 is about 46364.6080539888. The cubic root of 2149676880 is about 1290.5982202269.

The spelling of 2149676880 in words is "two billion, one hundred forty-nine million, six hundred seventy-six thousand, eight hundred eighty".