354221363120437 has 2 divisors, whose sum is σ = 354221363120438. Its totient is φ = 354221363120436.

The previous prime is 354221363120431. The next prime is 354221363120453. The reversal of 354221363120437 is 734021363122453.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 240413986973521 + 113807376146916 = 15505289^2 + 10668054^2 .

It is a cyclic number.

It is not a de Polignac number, because 354221363120437 - 2³¹ = 354219215636789 is a prime.

It is a super-3 number, since 3×354221363120437³ (a number of 45 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (354221363120431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177110681560218 + 177110681560219.

It is an arithmetic number, because the mean of its divisors is an integer number (177110681560219).

Almost surely, 2^{354221363120437} is an apocalyptic number.

It is an amenable number.

354221363120437 is a deficient number, since it is larger than the sum of its proper divisors (1).

354221363120437 is an equidigital number, since it uses as much as digits as its factorization.

354221363120437 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2177280, while the sum is 46.

The spelling of 354221363120437 in words is "three hundred fifty-four trillion, two hundred twenty-one billion, three hundred sixty-three million, one hundred twenty thousand, four hundred thirty-seven".