18346106357 has 2 divisors, whose sum is σ = 18346106358. Its totient is φ = 18346106356.

The previous prime is 18346106351. The next prime is 18346106413. The reversal of 18346106357 is 75360164381.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16632229156 + 1713877201 = 128966^2 + 41399^2 .

It is a cyclic number.

It is not a de Polignac number, because 18346106357 - 2⁴ = 18346106341 is a prime.

It is a super-2 number, since 2×18346106357² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18346106351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9173053178 + 9173053179.

It is an arithmetic number, because the mean of its divisors is an integer number (9173053179).

Almost surely, 2^18346106357 is an apocalyptic number.

It is an amenable number.

18346106357 is a deficient number, since it is larger than the sum of its proper divisors (1).

18346106357 is an equidigital number, since it uses as much as digits as its factorization.

18346106357 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 362880, while the sum is 44.

The spelling of 18346106357 in words is "eighteen billion, three hundred forty-six million, one hundred six thousand, three hundred fifty-seven".