345273206620 has 24 divisors (see below), whose sum is σ = 725089476384. Its totient is φ = 138106284096.

The previous prime is 345273206617. The next prime is 345273206653. The reversal of 345273206620 is 26602372543.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 914937 + ... + 1235983.

It is an arithmetic number, because the mean of its divisors is an integer number (30212061516).

Almost surely, 2^345273206620 is an apocalyptic number.

It is an amenable number.

345273206620 is an abundant number, since it is smaller than the sum of its proper divisors (379816269764).

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

345273206620 is a wasteful number, since it uses less digits than its factorization.

345273206620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374829 (or 374827 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 40.

The spelling of 345273206620 in words is "three hundred forty-five billion, two hundred seventy-three million, two hundred six thousand, six hundred twenty".