354440347019 has 4 divisors (see below), whose sum is σ = 386662196760. Its totient is φ = 322218497280.

The previous prime is 354440346977. The next prime is 354440347021. The reversal of 354440347019 is 910743044453.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 354440347019 - 2¹² = 354440342923 is a prime.

It is a super-2 number, since 2×354440347019² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (354440347049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16110924854 + ... + 16110924875.

It is an arithmetic number, because the mean of its divisors is an integer number (96665549190).

Almost surely, 2^354440347019 is an apocalyptic number.

354440347019 is a deficient number, since it is larger than the sum of its proper divisors (32221849741).

354440347019 is a wasteful number, since it uses less digits than its factorization.

354440347019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32221849740.

The product of its (nonzero) digits is 725760, while the sum is 44.

The spelling of 354440347019 in words is "three hundred fifty-four billion, four hundred forty million, three hundred forty-seven thousand, nineteen".