287920365090 has 16 divisors (see below), whose sum is σ = 691008876288. Its totient is φ = 76778764016.

The previous prime is 287920365053. The next prime is 287920365097. The reversal of 287920365090 is 90563029782.

It is not an unprimeable number, because it can be changed into a prime (287920365097) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4798672722 + ... + 4798672781.

It is an arithmetic number, because the mean of its divisors is an integer number (43188054768).

Almost surely, 2^287920365090 is an apocalyptic number.

287920365090 is an abundant number, since it is smaller than the sum of its proper divisors (403088511198).

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

287920365090 is a wasteful number, since it uses less digits than its factorization.

287920365090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9597345513.

The product of its (nonzero) digits is 1632960, while the sum is 51.

The spelling of 287920365090 in words is "two hundred eighty-seven billion, nine hundred twenty million, three hundred sixty-five thousand, ninety".