1181979709093 has 2 divisors, whose sum is σ = 1181979709094. Its totient is φ = 1181979709092.

The previous prime is 1181979709003. The next prime is 1181979709139. The reversal of 1181979709093 is 3909079791811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1181553782049 + 425927044 = 1086993^2 + 20638^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1181979709093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1181979709003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 590989854546 + 590989854547.

It is an arithmetic number, because the mean of its divisors is an integer number (590989854547).

Almost surely, 2^{1181979709093} is an apocalyptic number.

It is an amenable number.

1181979709093 is a deficient number, since it is larger than the sum of its proper divisors (1).

1181979709093 is an equidigital number, since it uses as much as digits as its factorization.

1181979709093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7715736, while the sum is 64.

The spelling of 1181979709093 in words is "one trillion, one hundred eighty-one billion, nine hundred seventy-nine million, seven hundred nine thousand, ninety-three".