287680915434 has 32 divisors (see below), whose sum is σ = 636265646784. Its totient is φ = 85981841280.

The previous prime is 287680915433. The next prime is 287680915477. The reversal of 287680915434 is 434519086782.

It is a happy number.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (287680915433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29849989 + ... + 29859624.

It is an arithmetic number, because the mean of its divisors is an integer number (19883301462).

It is a 1-persistent number, because it is pandigital, but 2⋅287680915434 = 575361830868 is not.

Almost surely, 2^287680915434 is an apocalyptic number.

287680915434 is an abundant number, since it is smaller than the sum of its proper divisors (348584731350).

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

287680915434 is a wasteful number, since it uses less digits than its factorization.

287680915434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59709702.

The product of its (nonzero) digits is 11612160, while the sum is 57.

The spelling of 287680915434 in words is "two hundred eighty-seven billion, six hundred eighty million, nine hundred fifteen thousand, four hundred thirty-four".