1178996794405 has 16 divisors (see below), whose sum is σ = 1420684659504. Its totient is φ = 939273748480.

The previous prime is 1178996794379. The next prime is 1178996794541. The reversal of 1178996794405 is 5044976998711.

It can be written as a sum of positive squares in 8 ways, for example, as 83371942564 + 1095624851841 = 288742^2 + 1046721^2 .

It is not a de Polignac number, because 1178996794405 - 2²³ = 1178988405797 is a prime.

It is a Duffinian number.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 4710909 + ... + 4954861.

It is an arithmetic number, because the mean of its divisors is an integer number (88792791219).

Almost surely, 2^{1178996794405} is an apocalyptic number.

It is an amenable number.

1178996794405 is a deficient number, since it is larger than the sum of its proper divisors (241687865099).

1178996794405 is a wasteful number, since it uses less digits than its factorization.

1178996794405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247976.

The product of its (nonzero) digits is 137168640, while the sum is 70.

The spelling of 1178996794405 in words is "one trillion, one hundred seventy-eight billion, nine hundred ninety-six million, seven hundred ninety-four thousand, four hundred five".