17973156079 has 2 divisors, whose sum is σ = 17973156080. Its totient is φ = 17973156078.

The previous prime is 17973156049. The next prime is 17973156107. The reversal of 17973156079 is 97065137971.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 17973156079 - 2¹³ = 17973147887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (17973156049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8986578039 + 8986578040.

It is an arithmetic number, because the mean of its divisors is an integer number (8986578040).

Almost surely, 2^17973156079 is an apocalyptic number.

17973156079 is a deficient number, since it is larger than the sum of its proper divisors (1).

17973156079 is an equidigital number, since it uses as much as digits as its factorization.

17973156079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2500470, while the sum is 55.

The spelling of 17973156079 in words is "seventeen billion, nine hundred seventy-three million, one hundred fifty-six thousand, seventy-nine".