352450850383621 has 4 divisors (see below), whose sum is σ = 384491836782144. Its totient is φ = 320409863985100.

The previous prime is 352450850383603. The next prime is 352450850383649. The reversal of 352450850383621 is 126383058054253.

It is a happy number.

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 352450850383621 - 2²⁹ = 352450313512709 is a prime.

It is a super-2 number, since 2×352450850383621² (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 (352450850383921) 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, 16020493199245 + ... + 16020493199266.

It is an arithmetic number, because the mean of its divisors is an integer number (96122959195536).

Almost surely, 2^{352450850383621} is an apocalyptic number.

It is an amenable number.

352450850383621 is a deficient number, since it is larger than the sum of its proper divisors (32040986398523).

352450850383621 is a wasteful number, since it uses less digits than its factorization.

352450850383621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32040986398522.

The product of its (nonzero) digits is 20736000, while the sum is 55.

The spelling of 352450850383621 in words is "three hundred fifty-two trillion, four hundred fifty billion, eight hundred fifty million, three hundred eighty-three thousand, six hundred twenty-one".