1117961128750 has 40 divisors (see below), whose sum is σ = 2167765249320. Its totient is φ = 431764284000.

The previous prime is 1117961128709. The next prime is 1117961128751. The reversal of 1117961128750 is 578211697111.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1117961128694 and 1117961128703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1117961128751) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 15383904 + ... + 15456403.

It is an arithmetic number, because the mean of its divisors is an integer number (54194131233).

Almost surely, 2^{1117961128750} is an apocalyptic number.

1117961128750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1117961128750 is a deficient number, since it is larger than the sum of its proper divisors (1049804120570).

1117961128750 is an equidigital number, since it uses as much as digits as its factorization.

1117961128750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30840358 (or 30840343 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 49.

The spelling of 1117961128750 in words is "one trillion, one hundred seventeen billion, nine hundred sixty-one million, one hundred twenty-eight thousand, seven hundred fifty".