1178315773451 has 2 divisors, whose sum is σ = 1178315773452. Its totient is φ = 1178315773450.

The previous prime is 1178315773381. The next prime is 1178315773493. The reversal of 1178315773451 is 1543775138711.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1178315773451 - 2²² = 1178311579147 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1178315773393 and 1178315773402.

It is not a weakly prime, because it can be changed into another prime (1178315773051) 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, 589157886725 + 589157886726.

It is an arithmetic number, because the mean of its divisors is an integer number (589157886726).

Almost surely, 2^{1178315773451} is an apocalyptic number.

1178315773451 is a deficient number, since it is larger than the sum of its proper divisors (1).

1178315773451 is an equidigital number, since it uses as much as digits as its factorization.

1178315773451 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2469600, while the sum is 53.

The spelling of 1178315773451 in words is "one trillion, one hundred seventy-eight billion, three hundred fifteen million, seven hundred seventy-three thousand, four hundred fifty-one".