7866381348 has 72 divisors (see below), whose sum is σ = 22762620608. Its totient is φ = 2243827008.

The previous prime is 7866381329. The next prime is 7866381353. The reversal of 7866381348 is 8431836687.

It is a junction number, because it is equal to n+sod(n) for n = 7866381294 and 7866381303.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 129015 + ... + 179937.

Almost surely, 2^7866381348 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7866381348, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11381310304).

7866381348 is an abundant number, since it is smaller than the sum of its proper divisors (14896239260).

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

7866381348 is a wasteful number, since it uses less digits than its factorization.

7866381348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51553 (or 51548 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 54.

The square root of 7866381348 is about 88692.6228499304. The cubic root of 7866381348 is about 1988.8025377507.

The spelling of 7866381348 in words is "seven billion, eight hundred sixty-six million, three hundred eighty-one thousand, three hundred forty-eight".