287872200988 has 24 divisors (see below), whose sum is σ = 509009647104. Its totient is φ = 142446528000.

The previous prime is 287872200983. The next prime is 287872201021. The reversal of 287872200988 is 889002278782.

It is a super-2 number, since 2×287872200988² (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 (287872200983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 502873 + ... + 910288.

It is an arithmetic number, because the mean of its divisors is an integer number (21208735296).

Almost surely, 2^287872200988 is an apocalyptic number.

It is an amenable number.

287872200988 is a deficient number, since it is larger than the sum of its proper divisors (221137446116).

287872200988 is a wasteful number, since it uses less digits than its factorization.

287872200988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1413693 (or 1413691 counting only the distinct ones).

The product of its (nonzero) digits is 14450688, while the sum is 61.

The spelling of 287872200988 in words is "two hundred eighty-seven billion, eight hundred seventy-two million, two hundred thousand, nine hundred eighty-eight".