17957791063 has 2 divisors, whose sum is σ = 17957791064. Its totient is φ = 17957791062.

The previous prime is 17957791051. The next prime is 17957791087. The reversal of 17957791063 is 36019775971.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 17957791063 - 2¹⁷ = 17957659991 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 17957790995 and 17957791013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (17957791003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8978895531 + 8978895532.

It is an arithmetic number, because the mean of its divisors is an integer number (8978895532).

Almost surely, 2^17957791063 is an apocalyptic number.

17957791063 is a deficient number, since it is larger than the sum of its proper divisors (1).

17957791063 is an equidigital number, since it uses as much as digits as its factorization.

17957791063 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 17957791063 in words is "seventeen billion, nine hundred fifty-seven million, seven hundred ninety-one thousand, sixty-three".