2861297722 has 8 divisors (see below), whose sum is σ = 4292183700. Its totient is φ = 1430569824.

The previous prime is 2861297713. The next prime is 2861297729. The reversal of 2861297722 is 2277921682.

2861297722 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2418574041 + 442723681 = 49179^2 + 21041^2 .

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

It is not an unprimeable number, because it can be changed into a prime (2861297729) 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, 30654 + ... + 81622.

Almost surely, 2^2861297722 is an apocalyptic number.

2861297722 is a deficient number, since it is larger than the sum of its proper divisors (1430885978).

2861297722 is a wasteful number, since it uses less digits than its factorization.

2861297722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79040.

The product of its digits is 338688, while the sum is 46.

The square root of 2861297722 is about 53491.0994652381. The cubic root of 2861297722 is about 1419.6709086611.

The spelling of 2861297722 in words is "two billion, eight hundred sixty-one million, two hundred ninety-seven thousand, seven hundred twenty-two".