1129770795648 has 256 divisors, whose sum is σ = 3418386416640. Its totient is φ = 327251189760.

The previous prime is 1129770795623. The next prime is 1129770795679. The reversal of 1129770795648 is 8465970779211.

It is a super-2 number, since 2×1129770795648² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 196924236 + ... + 196929972.

It is an arithmetic number, because the mean of its divisors is an integer number (13353071940).

Almost surely, 2^{1129770795648} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1129770795648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1709193208320).

1129770795648 is an abundant number, since it is smaller than the sum of its proper divisors (2288615620992).

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

1129770795648 is a wasteful number, since it uses less digits than its factorization.

1129770795648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7815 (or 7803 counting only the distinct ones).

The product of its (nonzero) digits is 53343360, while the sum is 66.

The spelling of 1129770795648 in words is "one trillion, one hundred twenty-nine billion, seven hundred seventy million, seven hundred ninety-five thousand, six hundred forty-eight".