355134404621 has 4 divisors (see below), whose sum is σ = 355221048000. Its totient is φ = 355047761244.

The previous prime is 355134404591. The next prime is 355134404663. The reversal of 355134404621 is 126404431553.

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, and also an emirpimes, since its reverse is a distinct semiprime: 126404431553 = 709 ⋅178285517.

It is a cyclic number.

It is not a de Polignac number, because 355134404621 - 2³⁴ = 337954535437 is a prime.

It is a super-2 number, since 2×355134404621² (a number of 24 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 (355134454621) 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, 43315541 + ... + 43323738.

It is an arithmetic number, because the mean of its divisors is an integer number (88805262000).

Almost surely, 2^355134404621 is an apocalyptic number.

It is an amenable number.

355134404621 is a deficient number, since it is larger than the sum of its proper divisors (86643379).

355134404621 is an equidigital number, since it uses as much as digits as its factorization.

355134404621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86643378.

The product of its (nonzero) digits is 172800, while the sum is 38.

The spelling of 355134404621 in words is "three hundred fifty-five billion, one hundred thirty-four million, four hundred four thousand, six hundred twenty-one".