356843505348653 has 4 divisors (see below), whose sum is σ = 360376609362108. Its totient is φ = 353310401335200.

The previous prime is 356843505348601. The next prime is 356843505348677.

It is a happy number.

356843505348653 is nontrivially palindromic in base 10.

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

It can be written as a sum of positive squares in 2 ways, for example, as 345214839281764 + 11628666066889 = 18579958^2 + 3410083^2 .

It is a cyclic number.

It is not a de Polignac number, because 356843505348653 - 2⁸ = 356843505348397 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 (356843505348683) 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, 1766552006576 + ... + 1766552006777.

It is an arithmetic number, because the mean of its divisors is an integer number (90094152340527).

Almost surely, 2^{356843505348653} is an apocalyptic number.

It is an amenable number.

356843505348653 is a deficient number, since it is larger than the sum of its proper divisors (3533104013455).

356843505348653 is a wasteful number, since it uses less digits than its factorization.

356843505348653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3533104013454.

The product of its (nonzero) digits is 1866240000, while the sum is 68.

The spelling of 356843505348653 in words is "three hundred fifty-six trillion, eight hundred forty-three billion, five hundred five million, three hundred forty-eight thousand, six hundred fifty-three".