9877841460 has 120 divisors (see below), whose sum is σ = 31029573960. Its totient is φ = 2630486016.

The previous prime is 9877841459. The next prime is 9877841473. The reversal of 9877841460 is 641487789.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2294218404 + 7583623056 = 47898^2 + 87084^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 9877841397 and 9877841406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1306812 + ... + 1314348.

It is an arithmetic number, because the mean of its divisors is an integer number (258579783).

Almost surely, 2^9877841460 is an apocalyptic number.

9877841460 is a gapful number since it is divisible by the number (90) 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 9877841460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15514786980).

9877841460 is an abundant number, since it is smaller than the sum of its proper divisors (21151732500).

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

9877841460 is a wasteful number, since it uses less digits than its factorization.

9877841460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8367 (or 8356 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 54.

The square root of 9877841460 is about 99387.3304802981. The cubic root of 9877841460 is about 2145.6259701750.

The spelling of 9877841460 in words is "nine billion, eight hundred seventy-seven million, eight hundred forty-one thousand, four hundred sixty".