3549779453 has 4 divisors (see below), whose sum is σ = 3872486688. Its totient is φ = 3227072220.

The previous prime is 3549779449. The next prime is 3549779459.

3549779453 is nontrivially palindromic in base 10.

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 3549779453 - 2² = 3549779449 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3549779459) 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, 161353601 + ... + 161353622.

It is an arithmetic number, because the mean of its divisors is an integer number (968121672).

Almost surely, 2^3549779453 is an apocalyptic number.

It is an amenable number.

3549779453 is a deficient number, since it is larger than the sum of its proper divisors (322707235).

3549779453 is a wasteful number, since it uses less digits than its factorization.

3549779453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322707234.

The product of its digits is 14288400, while the sum is 56.

The square root of 3549779453 is about 59580.0256210083. The cubic root of 3549779453 is about 1525.4587104189.

The spelling of 3549779453 in words is "three billion, five hundred forty-nine million, seven hundred seventy-nine thousand, four hundred fifty-three".