287311008196 has 27 divisors (see below), whose sum is σ = 509082671181. Its totient is φ = 141880761744.

The previous prime is 287311008169. The next prime is 287311008199. The reversal of 287311008196 is 691800113782.

It is a happy number.

The square root of 287311008196 is 536014.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 86427768196 + 200883240000 = 293986^2 + 448200^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (287311008199) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 88976710 + ... + 88979938.

Almost surely, 2^287311008196 is an apocalyptic number.

287311008196 is the 536014-th square number.

It is an amenable number.

287311008196 is a deficient number, since it is larger than the sum of its proper divisors (221771662985).

287311008196 is an frugal number, since it uses more digits than its factorization.

287311008196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6628 (or 3314 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 46.

The spelling of 287311008196 in words is "two hundred eighty-seven billion, three hundred eleven million, eight thousand, one hundred ninety-six".