355434368729 has 4 divisors (see below), whose sum is σ = 387746584080. Its totient is φ = 323122153380.

The previous prime is 355434368717. The next prime is 355434368743. The reversal of 355434368729 is 927863434553.

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 355434368729 - 2¹⁶ = 355434303193 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (355434368129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16156107659 + ... + 16156107680.

It is an arithmetic number, because the mean of its divisors is an integer number (96936646020).

Almost surely, 2^355434368729 is an apocalyptic number.

It is an amenable number.

355434368729 is a deficient number, since it is larger than the sum of its proper divisors (32312215351).

355434368729 is a wasteful number, since it uses less digits than its factorization.

355434368729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32312215350.

The product of its digits is 65318400, while the sum is 59.

The spelling of 355434368729 in words is "three hundred fifty-five billion, four hundred thirty-four million, three hundred sixty-eight thousand, seven hundred twenty-nine".