1868124195 has 32 divisors (see below), whose sum is σ = 3795555840. Its totient is φ = 853999200.

The previous prime is 1868124161. The next prime is 1868124197. The reversal of 1868124195 is 5914218681.

It is a happy number.

It is not a de Polignac number, because 1868124195 - 2⁶ = 1868124131 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 1868124195.

It is not an unprimeable number, because it can be changed into a prime (1868124197) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 987481 + ... + 989370.

It is an arithmetic number, because the mean of its divisors is an integer number (118611120).

Almost surely, 2^1868124195 is an apocalyptic number.

1868124195 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1868124195 is an abundant number, since it is smaller than the sum of its proper divisors (1927431645).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1868124195 is a wasteful number, since it uses less digits than its factorization.

1868124195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1976872 (or 1976866 counting only the distinct ones).

The product of its digits is 138240, while the sum is 45.

The square root of 1868124195 is about 43221.8023108708. The cubic root of 1868124195 is about 1231.5968848516.

The spelling of 1868124195 in words is "one billion, eight hundred sixty-eight million, one hundred twenty-four thousand, one hundred ninety-five".