345404826844 has 96 divisors (see below), whose sum is σ = 757304432640. Its totient is φ = 133915238400.

The previous prime is 345404826839. The next prime is 345404826919. The reversal of 345404826844 is 448628404543.

It is a junction number, because it is equal to n+sod(n) for n = 345404826791 and 345404826800.

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, 62581917 + ... + 62587435.

It is an arithmetic number, because the mean of its divisors is an integer number (7888587840).

Almost surely, 2^345404826844 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 345404826844, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (378652216320).

345404826844 is an abundant number, since it is smaller than the sum of its proper divisors (411899605796).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

345404826844 is a wasteful number, since it uses less digits than its factorization.

345404826844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6499 (or 6497 counting only the distinct ones).

The product of its (nonzero) digits is 11796480, while the sum is 52.

The spelling of 345404826844 in words is "three hundred forty-five billion, four hundred four million, eight hundred twenty-six thousand, eight hundred forty-four".