1153209975040 has 72 divisors (see below), whose sum is σ = 2765333225088. Its totient is φ = 460777175040.

The previous prime is 1153209975037. The next prime is 1153209975097. The reversal of 1153209975040 is 405799023511.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 671599 + ... + 1660561.

It is an arithmetic number, because the mean of its divisors is an integer number (38407405904).

Almost surely, 2^{1153209975040} is an apocalyptic number.

1153209975040 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 1153209975040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1382666612544).

1153209975040 is an abundant number, since it is smaller than the sum of its proper divisors (1612123250048).

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

1153209975040 is an frugal number, since it uses more digits than its factorization.

1153209975040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 989895 (or 989881 counting only the distinct ones).

The product of its (nonzero) digits is 340200, while the sum is 46.

The spelling of 1153209975040 in words is "one trillion, one hundred fifty-three billion, two hundred nine million, nine hundred seventy-five thousand, forty".