287880563485 has 16 divisors (see below), whose sum is σ = 351997176960. Its totient is φ = 225944671680.

The previous prime is 287880563479. The next prime is 287880563491. The reversal of 287880563485 is 584365088782.

It is an interprime number because it is at equal distance from previous prime (287880563479) and next prime (287880563491).

It is not a de Polignac number, because 287880563485 - 2⁹ = 287880562973 is a prime.

It is a super-2 number, since 2×287880563485² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6329656 + ... + 6374974.

It is an arithmetic number, because the mean of its divisors is an integer number (21999823560).

Almost surely, 2^287880563485 is an apocalyptic number.

It is an amenable number.

287880563485 is a deficient number, since it is larger than the sum of its proper divisors (64116613475).

287880563485 is a wasteful number, since it uses less digits than its factorization.

287880563485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69348.

The product of its (nonzero) digits is 103219200, while the sum is 64.

The spelling of 287880563485 in words is "two hundred eighty-seven billion, eight hundred eighty million, five hundred sixty-three thousand, four hundred eighty-five".