1864851652 has 48 divisors (see below), whose sum is σ = 3572211888. Its totient is φ = 848240640.

The previous prime is 1864851629. The next prime is 1864851673. The reversal of 1864851652 is 2561584681.

It can be written as a sum of positive squares in 8 ways, for example, as 151388416 + 1713463236 = 12304^2 + 41394^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 392652 + ... + 397372.

It is an arithmetic number, because the mean of its divisors is an integer number (74421081).

Almost surely, 2^1864851652 is an apocalyptic number.

It is an amenable number.

1864851652 is a deficient number, since it is larger than the sum of its proper divisors (1707360236).

1864851652 is a wasteful number, since it uses less digits than its factorization.

1864851652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4936 (or 4934 counting only the distinct ones).

The product of its digits is 460800, while the sum is 46.

The square root of 1864851652 is about 43183.9281677802. The cubic root of 1864851652 is about 1230.8773021532.

The spelling of 1864851652 in words is "one billion, eight hundred sixty-four million, eight hundred fifty-one thousand, six hundred fifty-two".