2775387993 has 8 divisors (see below), whose sum is σ = 4229162688. Its totient is φ = 1585935984.

The previous prime is 2775387991. The next prime is 2775388009. The reversal of 2775387993 is 3997835772.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2775387993 - 2¹ = 2775387991 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2775387991) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 66080646 + ... + 66080687.

It is an arithmetic number, because the mean of its divisors is an integer number (528645336).

Almost surely, 2^2775387993 is an apocalyptic number.

It is an amenable number.

2775387993 is a deficient number, since it is larger than the sum of its proper divisors (1453774695).

2775387993 is a wasteful number, since it uses less digits than its factorization.

2775387993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132161343.

The product of its digits is 20003760, while the sum is 60.

The square root of 2775387993 is about 52681.9513021300. The cubic root of 2775387993 is about 1405.3178686663.

The spelling of 2775387993 in words is "two billion, seven hundred seventy-five million, three hundred eighty-seven thousand, nine hundred ninety-three".