1098685505124 has 81 divisors (see below), whose sum is σ = 2807718215211. Its totient is φ = 362251699200.

The previous prime is 1098685505087. The next prime is 1098685505147. The reversal of 1098685505124 is 4215055868901.

The square root of 1098685505124 is 1048182.

It is a perfect power (a square), and thus also a powerful number.

1098685505124 is a `hidden beast` number, since 1 + 0 + 9 + 8 + 6 + 8 + 5 + 505 + 124 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 223398022500 + 875287482624 = 472650^2 + 935568^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 610041024 + ... + 610042824.

Almost surely, 2^{1098685505124} is an apocalyptic number.

1098685505124 is the 1048182-nd square number.

It is an amenable number.

1098685505124 is an abundant number, since it is smaller than the sum of its proper divisors (1709032710087).

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

1098685505124 is an frugal number, since it uses more digits than its factorization.

1098685505124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3806 (or 1903 counting only the distinct ones).

The product of its (nonzero) digits is 3456000, while the sum is 54.

The spelling of 1098685505124 in words is "one trillion, ninety-eight billion, six hundred eighty-five million, five hundred five thousand, one hundred twenty-four".