345351421455 has 32 divisors (see below), whose sum is σ = 553202141184. Its totient is φ = 183974284416.

The previous prime is 345351421427. The next prime is 345351421463. The reversal of 345351421455 is 554124153543.

It is not a de Polignac number, because 345351421455 - 2¹⁶ = 345351355919 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 76623312 + ... + 76627818.

It is an arithmetic number, because the mean of its divisors is an integer number (17287566912).

Almost surely, 2^345351421455 is an apocalyptic number.

345351421455 is a deficient number, since it is larger than the sum of its proper divisors (207850719729).

345351421455 is a wasteful number, since it uses less digits than its factorization.

345351421455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9295.

The product of its digits is 720000, while the sum is 42.

Adding to 345351421455 its reverse (554124153543), we get a palindrome (899475574998).

The spelling of 345351421455 in words is "three hundred forty-five billion, three hundred fifty-one million, four hundred twenty-one thousand, four hundred fifty-five".