345643397860 has 192 divisors, whose sum is σ = 812452032000. Its totient is φ = 122847436800.

The previous prime is 345643397851. The next prime is 345643397861. The reversal of 345643397860 is 68793346543.

It is a junction number, because it is equal to n+sod(n) for n = 345643397795 and 345643397804.

It is not an unprimeable number, because it can be changed into a prime (345643397861) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 394119742 + ... + 394120618.

It is an arithmetic number, because the mean of its divisors is an integer number (4231521000).

Almost surely, 2^345643397860 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 345643397860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (406226016000).

345643397860 is an abundant number, since it is smaller than the sum of its proper divisors (466808634140).

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

345643397860 is a wasteful number, since it uses less digits than its factorization.

345643397860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1526 (or 1524 counting only the distinct ones).

The product of its (nonzero) digits is 39191040, while the sum is 58.

The spelling of 345643397860 in words is "three hundred forty-five billion, six hundred forty-three million, three hundred ninety-seven thousand, eight hundred sixty".