2149878633 has 32 divisors (see below), whose sum is σ = 3651287040. Its totient is φ = 1095379200.

The previous prime is 2149878631. The next prime is 2149878641. The reversal of 2149878633 is 3368789412.

It is not a de Polignac number, because 2149878633 - 2¹ = 2149878631 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (2149878631) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 151693 + ... + 165258.

It is an arithmetic number, because the mean of its divisors is an integer number (114102720).

Almost surely, 2^2149878633 is an apocalyptic number.

It is an amenable number.

2149878633 is a deficient number, since it is larger than the sum of its proper divisors (1501408407).

2149878633 is a wasteful number, since it uses less digits than its factorization.

2149878633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316997.

The product of its digits is 1741824, while the sum is 51.

The square root of 2149878633 is about 46366.7837249900. The cubic root of 2149878633 is about 1290.6385943439.

The spelling of 2149878633 in words is "two billion, one hundred forty-nine million, eight hundred seventy-eight thousand, six hundred thirty-three".