351346016447 has 4 divisors (see below), whose sum is σ = 351415996776. Its totient is φ = 351276036120.

The previous prime is 351346016429. The next prime is 351346016501. The reversal of 351346016447 is 744610643153.

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 351346016447 - 2⁶ = 351346016383 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 351346016398 and 351346016407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (351346010447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34982633 + ... + 34992674.

It is an arithmetic number, because the mean of its divisors is an integer number (87853999194).

Almost surely, 2^351346016447 is an apocalyptic number.

351346016447 is a deficient number, since it is larger than the sum of its proper divisors (69980329).

351346016447 is an equidigital number, since it uses as much as digits as its factorization.

351346016447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69980328.

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

The spelling of 351346016447 in words is "three hundred fifty-one billion, three hundred forty-six million, sixteen thousand, four hundred forty-seven".