287312103425380 has 144 divisors (see below), whose sum is σ = 685867502384064. Its totient is φ = 100255596618240.

The previous prime is 287312103425323. The next prime is 287312103425401. The reversal of 287312103425380 is 83524301213782.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 25394854 + ... + 34921666.

It is an arithmetic number, because the mean of its divisors is an integer number (4762968766556).

Almost surely, 2^{287312103425380} is an apocalyptic number.

287312103425380 is a gapful number since it is divisible by the number (20) 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 287312103425380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (342933751192032).

287312103425380 is an abundant number, since it is smaller than the sum of its proper divisors (398555398958684).

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

287312103425380 is a wasteful number, since it uses less digits than its factorization.

287312103425380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9527054 (or 9527023 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 49.

The spelling of 287312103425380 in words is "two hundred eighty-seven trillion, three hundred twelve billion, one hundred three million, four hundred twenty-five thousand, three hundred eighty".