354172381793 has 2 divisors, whose sum is σ = 354172381794. Its totient is φ = 354172381792.

The previous prime is 354172381781. The next prime is 354172381813. The reversal of 354172381793 is 397183271453.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 310586633809 + 43585747984 = 557303^2 + 208772^2 .

It is an emirp because it is prime and its reverse (397183271453) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 354172381793 - 2⁶ = 354172381729 is a prime.

It is not a weakly prime, because it can be changed into another prime (354172381733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177086190896 + 177086190897.

It is an arithmetic number, because the mean of its divisors is an integer number (177086190897).

Almost surely, 2^354172381793 is an apocalyptic number.

It is an amenable number.

354172381793 is a deficient number, since it is larger than the sum of its proper divisors (1).

354172381793 is an equidigital number, since it uses as much as digits as its factorization.

354172381793 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3810240, while the sum is 53.

The spelling of 354172381793 in words is "three hundred fifty-four billion, one hundred seventy-two million, three hundred eighty-one thousand, seven hundred ninety-three".