287538616125 has 64 divisors (see below), whose sum is σ = 559607443200. Its totient is φ = 145282636800.

The previous prime is 287538616117. The next prime is 287538616129. The reversal of 287538616125 is 521616835782.

287538616125 is a `hidden beast` number, since 2 + 8 + 7 + 5 + 3 + 8 + 616 + 12 + 5 = 666.

It is not a de Polignac number, because 287538616125 - 2³ = 287538616117 is a prime.

It is a super-2 number, since 2×287538616125² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (287538616129) 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, 2177892 + ... + 2306141.

It is an arithmetic number, because the mean of its divisors is an integer number (8743866300).

Almost surely, 2^287538616125 is an apocalyptic number.

287538616125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

287538616125 is a deficient number, since it is larger than the sum of its proper divisors (272068827075).

287538616125 is a wasteful number, since it uses less digits than its factorization.

287538616125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4484076 (or 4484060 counting only the distinct ones).

The product of its digits is 4838400, while the sum is 54.

The spelling of 287538616125 in words is "two hundred eighty-seven billion, five hundred thirty-eight million, six hundred sixteen thousand, one hundred twenty-five".