345425672730 has 128 divisors (see below), whose sum is σ = 877769809920. Its totient is φ = 86819166720.

The previous prime is 345425672717. The next prime is 345425672731. The reversal of 345425672730 is 37276524543.

It is a self number, because there is not a number n which added to its sum of digits gives 345425672730.

It is not an unprimeable number, because it can be changed into a prime (345425672731) 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, 28393629 + ... + 28405791.

It is an arithmetic number, because the mean of its divisors is an integer number (6857576640).

Almost surely, 2^345425672730 is an apocalyptic number.

345425672730 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 345425672730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (438884904960).

345425672730 is an abundant number, since it is smaller than the sum of its proper divisors (532344137190).

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

345425672730 is a wasteful number, since it uses less digits than its factorization.

345425672730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12796.

The product of its (nonzero) digits is 4233600, while the sum is 48.

The spelling of 345425672730 in words is "three hundred forty-five billion, four hundred twenty-five million, six hundred seventy-two thousand, seven hundred thirty".