1173400522379 has 2 divisors, whose sum is σ = 1173400522380. Its totient is φ = 1173400522378.

The previous prime is 1173400522361. The next prime is 1173400522381. The reversal of 1173400522379 is 9732250043711.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1173400522379 is a prime.

Together with 1173400522381, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1173400522309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 586700261189 + 586700261190.

It is an arithmetic number, because the mean of its divisors is an integer number (586700261190).

Almost surely, 2^{1173400522379} is an apocalyptic number.

1173400522379 is a deficient number, since it is larger than the sum of its proper divisors (1).

1173400522379 is an equidigital number, since it uses as much as digits as its factorization.

1173400522379 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 317520, while the sum is 44.

The spelling of 1173400522379 in words is "one trillion, one hundred seventy-three billion, four hundred million, five hundred twenty-two thousand, three hundred seventy-nine".