355390246068479 has 4 divisors (see below), whose sum is σ = 363655135511976. Its totient is φ = 347125356624984.

The previous prime is 355390246068469. The next prime is 355390246068497. The reversal of 355390246068479 is 974860642093553.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-355390246068479 is a prime.

It is a super-2 number, since 2×355390246068479² (a number of 30 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 (355390246068469) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4132444721684 + ... + 4132444721769.

It is an arithmetic number, because the mean of its divisors is an integer number (90913783877994).

Almost surely, 2^{355390246068479} is an apocalyptic number.

355390246068479 is a deficient number, since it is larger than the sum of its proper divisors (8264889443497).

355390246068479 is an equidigital number, since it uses as much as digits as its factorization.

355390246068479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8264889443496.

The product of its (nonzero) digits is 1175731200, while the sum is 71.

The spelling of 355390246068479 in words is "three hundred fifty-five trillion, three hundred ninety billion, two hundred forty-six million, sixty-eight thousand, four hundred seventy-nine".