2651377791 has 8 divisors (see below), whose sum is σ = 3621394224. Its totient is φ = 1724473280.

The previous prime is 2651377789. The next prime is 2651377793. The reversal of 2651377791 is 1977731562.

2651377791 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2651377789) and next prime (2651377793).

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

It is a cyclic number.

It is not a de Polignac number, because 2651377791 - 2¹ = 2651377789 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2651377791.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2651377793) 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, 10777836 + ... + 10778081.

It is an arithmetic number, because the mean of its divisors is an integer number (452674278).

Almost surely, 2^2651377791 is an apocalyptic number.

2651377791 is a deficient number, since it is larger than the sum of its proper divisors (970016433).

2651377791 is a wasteful number, since it uses less digits than its factorization.

2651377791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21555961.

The product of its digits is 555660, while the sum is 48.

The square root of 2651377791 is about 51491.5312551491. The cubic root of 2651377791 is about 1384.0672891468.

The spelling of 2651377791 in words is "two billion, six hundred fifty-one million, three hundred seventy-seven thousand, seven hundred ninety-one".