1117458878929 has 2 divisors, whose sum is σ = 1117458878930. Its totient is φ = 1117458878928.

The previous prime is 1117458878839. The next prime is 1117458878981. The reversal of 1117458878929 is 9298788547111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 936133651600 + 181325227329 = 967540^2 + 425823^2 .

It is a cyclic number.

It is not a de Polignac number, because 1117458878929 - 2³⁵ = 1083099140561 is a prime.

It is not a weakly prime, because it can be changed into another prime (1117458878999) by changing a digit.

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 as a sum of consecutive naturals, namely, 558729439464 + 558729439465.

It is an arithmetic number, because the mean of its divisors is an integer number (558729439465).

Almost surely, 2^{1117458878929} is an apocalyptic number.

It is an amenable number.

1117458878929 is a deficient number, since it is larger than the sum of its proper divisors (1).

1117458878929 is an equidigital number, since it uses as much as digits as its factorization.

1117458878929 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 81285120, while the sum is 70.

The spelling of 1117458878929 in words is "one trillion, one hundred seventeen billion, four hundred fifty-eight million, eight hundred seventy-eight thousand, nine hundred twenty-nine".