348195508257 has 16 divisors (see below), whose sum is σ = 491606330112. Its totient is φ = 218459523840.

The previous prime is 348195508253. The next prime is 348195508279. The reversal of 348195508257 is 752805591843.

It is not a de Polignac number, because 348195508257 - 2² = 348195508253 is a prime.

It is a super-2 number, since 2×348195508257² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 348195508197 and 348195508206.

It is not an unprimeable number, because it can be changed into a prime (348195508253) 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, 467907 + ... + 956727.

It is an arithmetic number, because the mean of its divisors is an integer number (30725395632).

Almost surely, 2^348195508257 is an apocalyptic number.

It is an amenable number.

348195508257 is a deficient number, since it is larger than the sum of its proper divisors (143410821855).

348195508257 is a wasteful number, since it uses less digits than its factorization.

348195508257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502808.

The product of its (nonzero) digits is 12096000, while the sum is 57.

The spelling of 348195508257 in words is "three hundred forty-eight billion, one hundred ninety-five million, five hundred eight thousand, two hundred fifty-seven".