1869486312 has 32 divisors (see below), whose sum is σ = 4705092000. Its totient is φ = 618978624.

The previous prime is 1869486301. The next prime is 1869486313. The reversal of 1869486312 is 2136849681.

It is a super-2 number, since 2×1869486312² = 6989958141510722688, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1869486313) 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, 257818 + ... + 264969.

It is an arithmetic number, because the mean of its divisors is an integer number (147034125).

Almost surely, 2^1869486312 is an apocalyptic number.

1869486312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1869486312 is an abundant number, since it is smaller than the sum of its proper divisors (2835605688).

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

1869486312 is a wasteful number, since it uses less digits than its factorization.

1869486312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522945 (or 522941 counting only the distinct ones).

The product of its digits is 497664, while the sum is 48.

The square root of 1869486312 is about 43237.5567302316. The cubic root of 1869486312 is about 1231.8961460919.

The spelling of 1869486312 in words is "one billion, eight hundred sixty-nine million, four hundred eighty-six thousand, three hundred twelve".