2139265776 has 20 divisors (see below), whose sum is σ = 5526436712. Its totient is φ = 713088576.

The previous prime is 2139265759. The next prime is 2139265787. The reversal of 2139265776 is 6775629312.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 44568037 = 2139265776 / (2 + 1 + 3 + 9 + 2 + 6 + 5 + 7 + 7 + 6).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22283971 + ... + 22284066.

Almost surely, 2^2139265776 is an apocalyptic number.

It is an amenable number.

2139265776 is an abundant number, since it is smaller than the sum of its proper divisors (3387170936).

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

2139265776 is a wasteful number, since it uses less digits than its factorization.

2139265776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44568048 (or 44568042 counting only the distinct ones).

The product of its digits is 952560, while the sum is 48.

The square root of 2139265776 is about 46252.1975261717. The cubic root of 2139265776 is about 1288.5113480864.

The spelling of 2139265776 in words is "two billion, one hundred thirty-nine million, two hundred sixty-five thousand, seven hundred seventy-six".