1148847821802 has 64 divisors (see below), whose sum is σ = 2587917323520. Its totient is φ = 382444947360.

The previous prime is 1148847821801. The next prime is 1148847821843. The reversal of 1148847821802 is 2081287488411.

1148847821802 is a `hidden beast` number, since 1 + 1 + 488 + 4 + 7 + 82 + 1 + 80 + 2 = 666.

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 (1148847821801) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3156043 + ... + 3501185.

It is an arithmetic number, because the mean of its divisors is an integer number (40436208180).

Almost surely, 2^{1148847821802} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1148847821802, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1293958661760).

1148847821802 is an abundant number, since it is smaller than the sum of its proper divisors (1439069501718).

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

1148847821802 is an frugal number, since it uses more digits than its factorization.

1148847821802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345927 (or 345909 counting only the distinct ones).

The product of its (nonzero) digits is 1835008, while the sum is 54.

The spelling of 1148847821802 in words is "one trillion, one hundred forty-eight billion, eight hundred forty-seven million, eight hundred twenty-one thousand, eight hundred two".