2780033379 has 4 divisors (see below), whose sum is σ = 3706711176. Its totient is φ = 1853355584.

The previous prime is 2780033363. The next prime is 2780033381. The reversal of 2780033379 is 9733300872.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2780033379 - 2⁴ = 2780033363 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2780033379.

It is not an unprimeable number, because it can be changed into a prime (2780043379) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 463338894 + ... + 463338899.

It is an arithmetic number, because the mean of its divisors is an integer number (926677794).

Almost surely, 2^2780033379 is an apocalyptic number.

2780033379 is a deficient number, since it is larger than the sum of its proper divisors (926677797).

2780033379 is an equidigital number, since it uses as much as digits as its factorization.

2780033379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 926677796.

The product of its (nonzero) digits is 190512, while the sum is 42.

The square root of 2780033379 is about 52726.0218393157. The cubic root of 2780033379 is about 1406.1014954449.

The spelling of 2780033379 in words is "two billion, seven hundred eighty million, thirty-three thousand, three hundred seventy-nine".