1071128815788 has 48 divisors (see below), whose sum is σ = 2614732775424. Its totient is φ = 340923192960.

The previous prime is 1071128815781. The next prime is 1071128815843. The reversal of 1071128815788 is 8875188211701.

It is a super-2 number, since 2×1071128815788² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1071128815781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23137420 + ... + 23183667.

It is an arithmetic number, because the mean of its divisors is an integer number (54473599488).

Almost surely, 2^{1071128815788} is an apocalyptic number.

It is an amenable number.

1071128815788 is an abundant number, since it is smaller than the sum of its proper divisors (1543603959636).

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

1071128815788 is a wasteful number, since it uses less digits than its factorization.

1071128815788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46321182 (or 46321180 counting only the distinct ones).

The product of its (nonzero) digits is 2007040, while the sum is 57.

The spelling of 1071128815788 in words is "one trillion, seventy-one billion, one hundred twenty-eight million, eight hundred fifteen thousand, seven hundred eighty-eight".