1864253311 has 2 divisors, whose sum is σ = 1864253312. Its totient is φ = 1864253310.

The previous prime is 1864253257. The next prime is 1864253401. The reversal of 1864253311 is 1133524681.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1864253311 - 2⁹ = 1864252799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1864259311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 932126655 + 932126656.

It is an arithmetic number, because the mean of its divisors is an integer number (932126656).

Almost surely, 2^1864253311 is an apocalyptic number.

1864253311 is a deficient number, since it is larger than the sum of its proper divisors (1).

1864253311 is an equidigital number, since it uses as much as digits as its factorization.

1864253311 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17280, while the sum is 34.

The square root of 1864253311 is about 43176.9997915557. Note that the first 3 decimals coincide. The cubic root of 1864253311 is about 1230.7456450075.

Adding to 1864253311 its reverse (1133524681), we get a palindrome (2997777992).

The spelling of 1864253311 in words is "one billion, eight hundred sixty-four million, two hundred fifty-three thousand, three hundred eleven".