349526893957 has 4 divisors (see below), whose sum is σ = 350080819936. Its totient is φ = 348972967980.

The previous prime is 349526893949. The next prime is 349526893967. The reversal of 349526893957 is 759398625943.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 349526893957 - 2³ = 349526893949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349526893967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 276962043 + ... + 276963304.

It is an arithmetic number, because the mean of its divisors is an integer number (87520204984).

Almost surely, 2^349526893957 is an apocalyptic number.

It is an amenable number.

349526893957 is a deficient number, since it is larger than the sum of its proper divisors (553925979).

349526893957 is an equidigital number, since it uses as much as digits as its factorization.

349526893957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553925978.

The product of its digits is 440899200, while the sum is 70.

The spelling of 349526893957 in words is "three hundred forty-nine billion, five hundred twenty-six million, eight hundred ninety-three thousand, nine hundred fifty-seven".