287231450132 has 48 divisors (see below), whose sum is σ = 553788228672. Its totient is φ = 129266542080.

The previous prime is 287231450131. The next prime is 287231450173. The reversal of 287231450132 is 231054132782.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (287231450131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8801798 + ... + 8834370.

It is an arithmetic number, because the mean of its divisors is an integer number (11537254764).

Almost surely, 2^287231450132 is an apocalyptic number.

287231450132 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

287231450132 is a deficient number, since it is larger than the sum of its proper divisors (266556778540).

287231450132 is a wasteful number, since it uses less digits than its factorization.

287231450132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34568 (or 34566 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 38.

The spelling of 287231450132 in words is "two hundred eighty-seven billion, two hundred thirty-one million, four hundred fifty thousand, one hundred thirty-two".