2261793777 has 8 divisors (see below), whose sum is σ = 3021027360. Its totient is φ = 1505211360.

The previous prime is 2261793773. The next prime is 2261793797. The reversal of 2261793777 is 7773971622.

It is a happy number.

2261793777 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 2261793777 - 2² = 2261793773 is a prime.

It is a super-2 number, since 2×2261793777² = 10231422179351851458, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2261793773) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 660799 + ... + 664212.

It is an arithmetic number, because the mean of its divisors is an integer number (377628420).

Almost surely, 2^2261793777 is an apocalyptic number.

It is an amenable number.

2261793777 is a deficient number, since it is larger than the sum of its proper divisors (759233583).

2261793777 is a wasteful number, since it uses less digits than its factorization.

2261793777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1325583.

The product of its digits is 1555848, while the sum is 51.

The square root of 2261793777 is about 47558.3197453400. The cubic root of 2261793777 is about 1312.6562224568.

The spelling of 2261793777 in words is "two billion, two hundred sixty-one million, seven hundred ninety-three thousand, seven hundred seventy-seven".