287285859378 has 48 divisors (see below), whose sum is σ = 742643724960. Its totient is φ = 82081673352.

The previous prime is 287285859373. The next prime is 287285859409. The reversal of 287285859378 is 873958582782.

287285859378 is a `hidden beast` number, since 2 + 8 + 7 + 2 + 8 + 585 + 9 + 37 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (287285859373) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 54284176 + ... + 54289467.

It is an arithmetic number, because the mean of its divisors is an integer number (15471744270).

Almost surely, 2^287285859378 is an apocalyptic number.

287285859378 is an abundant number, since it is smaller than the sum of its proper divisors (455357865582).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

287285859378 is a wasteful number, since it uses less digits than its factorization.

287285859378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108573668 (or 108573655 counting only the distinct ones).

The product of its digits is 541900800, while the sum is 72.

The spelling of 287285859378 in words is "two hundred eighty-seven billion, two hundred eighty-five million, eight hundred fifty-nine thousand, three hundred seventy-eight".