354743148640873 has 4 divisors (see below), whose sum is σ = 354842823594880. Its totient is φ = 354643473686868.

The previous prime is 354743148640843. The next prime is 354743148640931. The reversal of 354743148640873 is 378046841347453.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 354743148640873 - 2¹⁷ = 354743148509801 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 354743148640799 and 354743148640808.

It is not an unprimeable number, because it can be changed into a prime (354743148640843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49837471665 + ... + 49837478782.

It is an arithmetic number, because the mean of its divisors is an integer number (88710705898720).

Almost surely, 2^{354743148640873} is an apocalyptic number.

It is an amenable number.

354743148640873 is a deficient number, since it is larger than the sum of its proper divisors (99674954007).

354743148640873 is an equidigital number, since it uses as much as digits as its factorization.

354743148640873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99674954006.

The product of its (nonzero) digits is 650280960, while the sum is 67.

The spelling of 354743148640873 in words is "three hundred fifty-four trillion, seven hundred forty-three billion, one hundred forty-eight million, six hundred forty thousand, eight hundred seventy-three".