287725862664 has 96 divisors (see below), whose sum is σ = 850651620000. Its totient is φ = 90860787072.

The previous prime is 287725862663. The next prime is 287725862701. The reversal of 287725862664 is 466268527782.

287725862664 is a `hidden beast` number, since 28 + 7 + 7 + 2 + 586 + 26 + 6 + 4 = 666.

It is not an unprimeable number, because it can be changed into a prime (287725862663) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3857989 + ... + 3931860.

It is an arithmetic number, because the mean of its divisors is an integer number (8860954375).

Almost surely, 2^287725862664 is an apocalyptic number.

287725862664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

287725862664 is an abundant number, since it is smaller than the sum of its proper divisors (562925757336).

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

287725862664 is a wasteful number, since it uses less digits than its factorization.

287725862664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7789889 (or 7789873 counting only the distinct ones).

The product of its digits is 108380160, while the sum is 63.

The spelling of 287725862664 in words is "two hundred eighty-seven billion, seven hundred twenty-five million, eight hundred sixty-two thousand, six hundred sixty-four".