287286403825 has 24 divisors (see below), whose sum is σ = 379504290528. Its totient is φ = 214982657280.

The previous prime is 287286403813. The next prime is 287286403867. The reversal of 287286403825 is 528304682782.

It is not a de Polignac number, because 287286403825 - 2²³ = 287278015217 is a prime.

It is a Duffinian 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 23 ways as a sum of consecutive naturals, for example, 2004247 + ... + 2142796.

It is an arithmetic number, because the mean of its divisors is an integer number (15812678772).

Almost surely, 2^287286403825 is an apocalyptic number.

287286403825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

287286403825 is a deficient number, since it is larger than the sum of its proper divisors (92217886703).

287286403825 is a wasteful number, since it uses less digits than its factorization.

287286403825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4147233 (or 4147228 counting only the distinct ones).

The product of its (nonzero) digits is 10321920, while the sum is 55.

The spelling of 287286403825 in words is "two hundred eighty-seven billion, two hundred eighty-six million, four hundred three thousand, eight hundred twenty-five".