1148939657880 has 384 divisors, whose sum is σ = 4069263744000. Its totient is φ = 258731117568.

The previous prime is 1148939657863. The next prime is 1148939658001. The reversal of 1148939657880 is 887569398411.

It is a super-2 number, since 2×1148939657880² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 120517594 + ... + 120527126.

It is an arithmetic number, because the mean of its divisors is an integer number (10597041000).

Almost surely, 2^{1148939657880} is an apocalyptic number.

1148939657880 is a gapful number since it is divisible by the number (10) 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 1148939657880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2034631872000).

1148939657880 is an abundant number, since it is smaller than the sum of its proper divisors (2920324086120).

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

1148939657880 is a wasteful number, since it uses less digits than its factorization.

1148939657880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9863 (or 9852 counting only the distinct ones).

The product of its (nonzero) digits is 104509440, while the sum is 69.

The spelling of 1148939657880 in words is "one trillion, one hundred forty-eight billion, nine hundred thirty-nine million, six hundred fifty-seven thousand, eight hundred eighty".