1864486525 has 12 divisors (see below), whose sum is σ = 2522142144. Its totient is φ = 1355990000.

The previous prime is 1864486471. The next prime is 1864486571. The reversal of 1864486525 is 5256844681.

It is not a de Polignac number, because 1864486525 - 2¹¹ = 1864484477 is a prime.

It is a Duffinian number.

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 in 11 ways as a sum of consecutive naturals, for example, 3389701 + ... + 3390250.

It is an arithmetic number, because the mean of its divisors is an integer number (210178512).

Almost surely, 2^1864486525 is an apocalyptic number.

It is an amenable number.

1864486525 is a deficient number, since it is larger than the sum of its proper divisors (657655619).

1864486525 is a wasteful number, since it uses less digits than its factorization.

1864486525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6779972 (or 6779967 counting only the distinct ones).

The product of its digits is 1843200, while the sum is 49.

The square root of 1864486525 is about 43179.7003810818. The cubic root of 1864486525 is about 1230.7969640611.

The spelling of 1864486525 in words is "one billion, eight hundred sixty-four million, four hundred eighty-six thousand, five hundred twenty-five".