2258779693 has 2 divisors, whose sum is σ = 2258779694. Its totient is φ = 2258779692.

The previous prime is 2258779661. The next prime is 2258779751. The reversal of 2258779693 is 3969778522.

It is an a-pointer prime, because the next prime (2258779751) can be obtained adding 2258779693 to its sum of digits (58).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1640412004 + 618367689 = 40502^2 + 24867^2 .

It is a cyclic number.

It is not a de Polignac number, because 2258779693 - 2⁵ = 2258779661 is a prime.

It is a congruent number.

It is a weakly prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1129389846 + 1129389847.

It is an arithmetic number, because the mean of its divisors is an integer number (1129389847).

Almost surely, 2^2258779693 is an apocalyptic number.

It is an amenable number.

2258779693 is a deficient number, since it is larger than the sum of its proper divisors (1).

2258779693 is an equidigital number, since it uses as much as digits as its factorization.

2258779693 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11430720, while the sum is 58.

The square root of 2258779693 is about 47526.6208876667. The cubic root of 2258779693 is about 1312.0728779556.

The spelling of 2258779693 in words is "two billion, two hundred fifty-eight million, seven hundred seventy-nine thousand, six hundred ninety-three".