2287870865331 has 4 divisors (see below), whose sum is σ = 3050494487112. Its totient is φ = 1525247243552.

The previous prime is 2287870865323. The next prime is 2287870865339. The reversal of 2287870865331 is 1335680787822.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (2287870865323) and next prime (2287870865339).

It is a cyclic number.

It is not a de Polignac number, because 2287870865331 - 2³ = 2287870865323 is a prime.

It is a super-2 number, since 2×2287870865331² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2287870865339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 381311810886 + ... + 381311810891.

It is an arithmetic number, because the mean of its divisors is an integer number (762623621778).

Almost surely, 2^{2287870865331} is an apocalyptic number.

2287870865331 is a deficient number, since it is larger than the sum of its proper divisors (762623621781).

2287870865331 is an equidigital number, since it uses as much as digits as its factorization.

2287870865331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 762623621780.

The product of its (nonzero) digits is 27095040, while the sum is 60.

The spelling of 2287870865331 in words is "two trillion, two hundred eighty-seven billion, eight hundred seventy million, eight hundred sixty-five thousand, three hundred thirty-one".