2722406591 has 2 divisors, whose sum is σ = 2722406592. Its totient is φ = 2722406590.

The previous prime is 2722406587. The next prime is 2722406623. The reversal of 2722406591 is 1956042272.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2722406591 - 2² = 2722406587 is a prime.

It is a super-2 number, since 2×2722406591² = 14822995293440482562, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2722406551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1361203295 + 1361203296.

It is an arithmetic number, because the mean of its divisors is an integer number (1361203296).

Almost surely, 2^2722406591 is an apocalyptic number.

2722406591 is a deficient number, since it is larger than the sum of its proper divisors (1).

2722406591 is an equidigital number, since it uses as much as digits as its factorization.

2722406591 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 2722406591 is about 52176.6862784520. The cubic root of 2722406591 is about 1396.3179762351.

The spelling of 2722406591 in words is "two billion, seven hundred twenty-two million, four hundred six thousand, five hundred ninety-one".