348254316821 has 16 divisors (see below), whose sum is σ = 363786001920. Its totient is φ = 333052534080.

The previous prime is 348254316803. The next prime is 348254316827. The reversal of 348254316821 is 128613452843.

It is not a de Polignac number, because 348254316821 - 2³⁸ = 73376409877 is a prime.

It is a super-2 number, since 2×348254316821² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (348254316827) 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, 3194210 + ... + 3301436.

It is an arithmetic number, because the mean of its divisors is an integer number (22736625120).

Almost surely, 2^348254316821 is an apocalyptic number.

It is an amenable number.

348254316821 is a deficient number, since it is larger than the sum of its proper divisors (15531685099).

348254316821 is a wasteful number, since it uses less digits than its factorization.

348254316821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108764.

The product of its digits is 1105920, while the sum is 47.

The spelling of 348254316821 in words is "three hundred forty-eight billion, two hundred fifty-four million, three hundred sixteen thousand, eight hundred twenty-one".