1148888617857 has 24 divisors (see below), whose sum is σ = 1749181586880. Its totient is φ = 753369575760.

The previous prime is 1148888617847. The next prime is 1148888617873. The reversal of 1148888617857 is 7587168888411.

1148888617857 is a `hidden beast` number, since 1 + 1 + 488 + 8 + 8 + 61 + 7 + 85 + 7 = 666.

It is not a de Polignac number, because 1148888617857 - 2¹⁰ = 1148888616833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1148888617847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38738757 + ... + 38768402.

It is an arithmetic number, because the mean of its divisors is an integer number (72882566120).

Almost surely, 2^{1148888617857} is an apocalyptic number.

It is an amenable number.

1148888617857 is a deficient number, since it is larger than the sum of its proper divisors (600292969023).

1148888617857 is an frugal number, since it uses more digits than its factorization.

1148888617857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77507235 (or 77507223 counting only the distinct ones).

The product of its digits is 192675840, while the sum is 72.

The spelling of 1148888617857 in words is "one trillion, one hundred forty-eight billion, eight hundred eighty-eight million, six hundred seventeen thousand, eight hundred fifty-seven".