1864868141 has 8 divisors (see below), whose sum is σ = 1891579800. Its totient is φ = 1838318400.

The previous prime is 1864868119. The next prime is 1864868189. The reversal of 1864868141 is 1418684681.

It can be written as a sum of positive squares in 4 ways, for example, as 1270922500 + 593945641 = 35650^2 + 24371^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1864868141 - 2⁶ = 1864868077 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 (1864868101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17186 + ... + 63443.

It is an arithmetic number, because the mean of its divisors is an integer number (236447475).

Almost surely, 2^1864868141 is an apocalyptic number.

It is an amenable number.

1864868141 is a deficient number, since it is larger than the sum of its proper divisors (26711659).

1864868141 is a wasteful number, since it uses less digits than its factorization.

1864868141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80959.

The product of its digits is 294912, while the sum is 47.

The square root of 1864868141 is about 43184.1190832926. The cubic root of 1864868141 is about 1230.8809299442.

The spelling of 1864868141 in words is "one billion, eight hundred sixty-four million, eight hundred sixty-eight thousand, one hundred forty-one".