1128780471842 has 16 divisors (see below), whose sum is σ = 1782305670240. Its totient is φ = 534679272288.

The previous prime is 1128780471827. The next prime is 1128780471853. The reversal of 1128780471842 is 2481740878211.

It is a super-2 number, since 2×1128780471842² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 6100838 + ... + 6283134.

It is an arithmetic number, because the mean of its divisors is an integer number (111394104390).

Almost surely, 2^{1128780471842} is an apocalyptic number.

1128780471842 is a deficient number, since it is larger than the sum of its proper divisors (653525198398).

1128780471842 is a wasteful number, since it uses less digits than its factorization.

1128780471842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345265.

The product of its (nonzero) digits is 1605632, while the sum is 53.

The spelling of 1128780471842 in words is "one trillion, one hundred twenty-eight billion, seven hundred eighty million, four hundred seventy-one thousand, eight hundred forty-two".