348812728257 has 16 divisors (see below), whose sum is σ = 536400529280. Its totient is φ = 197492919552.

The previous prime is 348812728247. The next prime is 348812728273. The reversal of 348812728257 is 752827218843.

It is not a de Polignac number, because 348812728257 - 2²³ = 348804339649 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 348812728197 and 348812728206.

It is not an unprimeable number, because it can be changed into a prime (348812728207) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76190968 + ... + 76195545.

It is an arithmetic number, because the mean of its divisors is an integer number (33525033080).

Almost surely, 2^348812728257 is an apocalyptic number.

It is an amenable number.

348812728257 is a deficient number, since it is larger than the sum of its proper divisors (187587801023).

348812728257 is a wasteful number, since it uses less digits than its factorization.

348812728257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152386632.

The product of its digits is 12042240, while the sum is 57.

The spelling of 348812728257 in words is "three hundred forty-eight billion, eight hundred twelve million, seven hundred twenty-eight thousand, two hundred fifty-seven".