287275621113 has 64 divisors (see below), whose sum is σ = 468877024000. Its totient is φ = 172761942528.

The previous prime is 287275621111. The next prime is 287275621117. The reversal of 287275621113 is 311126572782.

287275621113 is a `hidden beast` number, since 2 + 8 + 7 + 2 + 7 + 5 + 621 + 1 + 13 = 666.

It is not a de Polignac number, because 287275621113 - 2¹ = 287275621111 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (287275621111) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2741478 + ... + 2844336.

It is an arithmetic number, because the mean of its divisors is an integer number (7326203500).

Almost surely, 2^287275621113 is an apocalyptic number.

It is an amenable number.

287275621113 is a deficient number, since it is larger than the sum of its proper divisors (181601402887).

287275621113 is a wasteful number, since it uses less digits than its factorization.

287275621113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103063 (or 103057 counting only the distinct ones).

The product of its digits is 282240, while the sum is 45.

The spelling of 287275621113 in words is "two hundred eighty-seven billion, two hundred seventy-five million, six hundred twenty-one thousand, one hundred thirteen".