1148895686988 has 144 divisors (see below), whose sum is σ = 3499389304320. Its totient is φ = 310474467072.

The previous prime is 1148895686959. The next prime is 1148895687011. The reversal of 1148895686988 is 8896865988411.

1148895686988 is a `hidden beast` number, since 1 + 1 + 48 + 8 + 9 + 568 + 6 + 9 + 8 + 8 = 666.

It is a super-2 number, since 2×1148895686988² (a number of 25 digits) contains 22 as substring.

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, 2759745 + ... + 3148647.

Almost surely, 2^{1148895686988} is an apocalyptic number.

1148895686988 is a gapful number since it is divisible by the number (18) 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 1148895686988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1749694652160).

1148895686988 is an abundant number, since it is smaller than the sum of its proper divisors (2350493617332).

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

1148895686988 is a wasteful number, since it uses less digits than its factorization.

1148895686988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389556 (or 389551 counting only the distinct ones).

The product of its digits is 1911029760, while the sum is 81.

The spelling of 1148895686988 in words is "one trillion, one hundred forty-eight billion, eight hundred ninety-five million, six hundred eighty-six thousand, nine hundred eighty-eight".