345757232272 has 20 divisors (see below), whose sum is σ = 669924628156. Its totient is φ = 172873457280.

The previous prime is 345757232251. The next prime is 345757232297. The reversal of 345757232272 is 272232757543.

It can be written as a sum of positive squares in 2 ways, for example, as 212616898816 + 133140333456 = 461104^2 + 364884^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 262678 + ... + 872074.

Almost surely, 2^345757232272 is an apocalyptic number.

It is an amenable number.

345757232272 is a deficient number, since it is larger than the sum of its proper divisors (324167395884).

345757232272 is a wasteful number, since it uses less digits than its factorization.

345757232272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644866 (or 644860 counting only the distinct ones).

The product of its digits is 4939200, while the sum is 49.

The spelling of 345757232272 in words is "three hundred forty-five billion, seven hundred fifty-seven million, two hundred thirty-two thousand, two hundred seventy-two".