1868786379 has 12 divisors (see below), whose sum is σ = 2703727000. Its totient is φ = 1243841184.

The previous prime is 1868786377. The next prime is 1868786393. The reversal of 1868786379 is 9736878681.

1868786379 is a `hidden beast` number, since 186 + 8 + 7 + 86 + 379 = 666.

It is not a de Polignac number, because 1868786379 - 2¹ = 1868786377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1868786377) by changing a digit.

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 in 11 ways as a sum of consecutive naturals, for example, 162154 + ... + 173295.

Almost surely, 2^1868786379 is an apocalyptic number.

1868786379 is a deficient number, since it is larger than the sum of its proper divisors (834940621).

1868786379 is a wasteful number, since it uses less digits than its factorization.

1868786379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336074 (or 336071 counting only the distinct ones).

The product of its digits is 24385536, while the sum is 63.

The square root of 1868786379 is about 43229.4619328069. The cubic root of 1868786379 is about 1231.7423868498.

The spelling of 1868786379 in words is "one billion, eight hundred sixty-eight million, seven hundred eighty-six thousand, three hundred seventy-nine".