1129909072572 has 216 divisors, whose sum is σ = 3374560949760. Its totient is φ = 317776979520.

The previous prime is 1129909072561. The next prime is 1129909072597. The reversal of 1129909072572 is 2752709099211.

1129909072572 is a `hidden beast` number, since 11 + 299 + 0 + 90 + 7 + 257 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

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 71 ways as a sum of consecutive naturals, for example, 214035829 + ... + 214041107.

It is an arithmetic number, because the mean of its divisors is an integer number (15622967360).

Almost surely, 2^{1129909072572} is an apocalyptic number.

1129909072572 is a gapful number since it is divisible by the number (12) 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 1129909072572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1687280474880).

1129909072572 is an abundant number, since it is smaller than the sum of its proper divisors (2244651877188).

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

1129909072572 is a wasteful number, since it uses less digits than its factorization.

1129909072572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7181 (or 7169 counting only the distinct ones).

The product of its (nonzero) digits is 1428840, while the sum is 54.

The spelling of 1129909072572 in words is "one trillion, one hundred twenty-nine billion, nine hundred nine million, seventy-two thousand, five hundred seventy-two".