287000786952 has 160 divisors (see below), whose sum is σ = 878533413120. Its totient is φ = 86812594560.

The previous prime is 287000786939. The next prime is 287000786953. The reversal of 287000786952 is 259687000782.

It is a happy number.

It is a super-2 number, since 2×287000786952² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (287000786953) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3934153 + ... + 4006439.

It is an arithmetic number, because the mean of its divisors is an integer number (5490833832).

Almost surely, 2^287000786952 is an apocalyptic number.

287000786952 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 287000786952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (439266706560).

287000786952 is an abundant number, since it is smaller than the sum of its proper divisors (591532626168).

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

287000786952 is a wasteful number, since it uses less digits than its factorization.

287000786952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72873 (or 72860 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 54.

The spelling of 287000786952 in words is "two hundred eighty-seven billion, seven hundred eighty-six thousand, nine hundred fifty-two".