351354684385 has 4 divisors (see below), whose sum is σ = 421625621268. Its totient is φ = 281083747504.

The previous prime is 351354684383. The next prime is 351354684397. The reversal of 351354684385 is 583486453153.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 583486453153 = 271 ⋅2153086543.

It can be written as a sum of positive squares in 2 ways, for example, as 101002560481 + 250352123904 = 317809^2 + 500352^2 .

It is a cyclic number.

It is not a de Polignac number, because 351354684385 - 2¹ = 351354684383 is a prime.

It is a super-2 number, since 2×351354684385² (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 (351354684383) 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, 35135468434 + ... + 35135468443.

It is an arithmetic number, because the mean of its divisors is an integer number (105406405317).

Almost surely, 2^351354684385 is an apocalyptic number.

It is an amenable number.

351354684385 is a deficient number, since it is larger than the sum of its proper divisors (70270936883).

351354684385 is an equidigital number, since it uses as much as digits as its factorization.

351354684385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70270936882.

The product of its digits is 20736000, while the sum is 55.

The spelling of 351354684385 in words is "three hundred fifty-one billion, three hundred fifty-four million, six hundred eighty-four thousand, three hundred eighty-five".