2649091258 has 16 divisors (see below), whose sum is σ = 4335869664. Its totient is φ = 1203856560.

The previous prime is 2649091253. The next prime is 2649091273. The reversal of 2649091258 is 8521909462.

It is not an unprimeable number, because it can be changed into a prime (2649091253) 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, 108541 + ... + 130687.

It is an arithmetic number, because the mean of its divisors is an integer number (270991854).

Almost surely, 2^2649091258 is an apocalyptic number.

2649091258 is a deficient number, since it is larger than the sum of its proper divisors (1686778406).

2649091258 is a wasteful number, since it uses less digits than its factorization.

2649091258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27597.

The product of its (nonzero) digits is 311040, while the sum is 46.

The square root of 2649091258 is about 51469.3234655362. The cubic root of 2649091258 is about 1383.6693041543.

The spelling of 2649091258 in words is "two billion, six hundred forty-nine million, ninety-one thousand, two hundred fifty-eight".