354640323046453 has 2 divisors, whose sum is σ = 354640323046454. Its totient is φ = 354640323046452.

The previous prime is 354640323046421. The next prime is 354640323046501.

It is a happy number.

354640323046453 is nontrivially palindromic in base 10.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 178377340216804 + 176262982829649 = 13355798^2 + 13276407^2 .

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 354640323046453 - 2⁵ = 354640323046421 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 354640323046453.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (354640323046553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177320161523226 + 177320161523227.

It is an arithmetic number, because the mean of its divisors is an integer number (177320161523227).

Almost surely, 2^{354640323046453} is an apocalyptic number.

It is an amenable number.

354640323046453 is a deficient number, since it is larger than the sum of its proper divisors (1).

354640323046453 is an equidigital number, since it uses as much as digits as its factorization.

354640323046453 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37324800, while the sum is 52.

The spelling of 354640323046453 in words is "three hundred fifty-four trillion, six hundred forty billion, three hundred twenty-three million, forty-six thousand, four hundred fifty-three".