1864542311 has 16 divisors (see below), whose sum is σ = 1992038400. Its totient is φ = 1741109568.

The previous prime is 1864542293. The next prime is 1864542331. The reversal of 1864542311 is 1132454681.

It is not a de Polignac number, because 1864542311 - 2²⁶ = 1797433447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1864542331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 472595 + ... + 476523.

It is an arithmetic number, because the mean of its divisors is an integer number (124502400).

Almost surely, 2^1864542311 is an apocalyptic number.

1864542311 is a deficient number, since it is larger than the sum of its proper divisors (127496089).

1864542311 is a wasteful number, since it uses less digits than its factorization.

1864542311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4438.

The product of its digits is 23040, while the sum is 35.

The square root of 1864542311 is about 43180.3463510889. The cubic root of 1864542311 is about 1230.8092392110.

Adding to 1864542311 its reverse (1132454681), we get a palindrome (2996996992).

The spelling of 1864542311 in words is "one billion, eight hundred sixty-four million, five hundred forty-two thousand, three hundred eleven".