1869796142 has 4 divisors (see below), whose sum is σ = 2804694216. Its totient is φ = 934898070.

The previous prime is 1869796129. The next prime is 1869796151. The reversal of 1869796142 is 2416979681.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×1869796142² = 6992275225276168328, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 467449034 + ... + 467449037.

It is an arithmetic number, because the mean of its divisors is an integer number (701173554).

Almost surely, 2^1869796142 is an apocalyptic number.

1869796142 is a deficient number, since it is larger than the sum of its proper divisors (934898074).

1869796142 is an equidigital number, since it uses as much as digits as its factorization.

1869796142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 934898073.

The product of its digits is 1306368, while the sum is 53.

The square root of 1869796142 is about 43241.1394623222. The cubic root of 1869796142 is about 1231.9641963895.

The spelling of 1869796142 in words is "one billion, eight hundred sixty-nine million, seven hundred ninety-six thousand, one hundred forty-two".