2775051389 has 12 divisors (see below), whose sum is σ = 3229692732. Its totient is φ = 2374373760.

The previous prime is 2775051379. The next prime is 2775051413. The reversal of 2775051389 is 9831505772.

It can be written as a sum of positive squares in 2 ways, for example, as 2571504100 + 203547289 = 50710^2 + 14267^2 .

It is not a de Polignac number, because 2775051389 - 2²⁸ = 2506615933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2775051379) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 672482 + ... + 676595.

It is an arithmetic number, because the mean of its divisors is an integer number (269141061).

Almost surely, 2^2775051389 is an apocalyptic number.

It is an amenable number.

2775051389 is a deficient number, since it is larger than the sum of its proper divisors (454641343).

2775051389 is a wasteful number, since it uses less digits than its factorization.

2775051389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1349116 (or 1349105 counting only the distinct ones).

The product of its (nonzero) digits is 529200, while the sum is 47.

The square root of 2775051389 is about 52678.7565248080. The cubic root of 2775051389 is about 1405.2610532178.

The spelling of 2775051389 in words is "two billion, seven hundred seventy-five million, fifty-one thousand, three hundred eighty-nine".