354622424781 has 4 divisors (see below), whose sum is σ = 472829899712. Its totient is φ = 236414949852.

The previous prime is 354622424777. The next prime is 354622424843. The reversal of 354622424781 is 187424226453.

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 not a de Polignac number, because 354622424781 - 2² = 354622424777 is a prime.

It is a super-2 number, since 2×354622424781² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 354622424781.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (354622424771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59103737461 + ... + 59103737466.

It is an arithmetic number, because the mean of its divisors is an integer number (118207474928).

Almost surely, 2^354622424781 is an apocalyptic number.

It is an amenable number.

354622424781 is a deficient number, since it is larger than the sum of its proper divisors (118207474931).

354622424781 is a wasteful number, since it uses less digits than its factorization.

354622424781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118207474930.

The product of its digits is 2580480, while the sum is 48.

The spelling of 354622424781 in words is "three hundred fifty-four billion, six hundred twenty-two million, four hundred twenty-four thousand, seven hundred eighty-one".