3554605507421 has 4 divisors (see below), whose sum is σ = 3763699949052. Its totient is φ = 3345511065792.

The previous prime is 3554605507339. The next prime is 3554605507469. The reversal of 3554605507421 is 1247055064553.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1266268581796 + 2288336925625 = 1125286^2 + 1512725^2 .

It is a de Polignac number, because none of the positive numbers 2^k-3554605507421 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 (3554605537421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104547220790 + ... + 104547220823.

It is an arithmetic number, because the mean of its divisors is an integer number (940924987263).

Almost surely, 2^{3554605507421} is an apocalyptic number.

It is an amenable number.

3554605507421 is a deficient number, since it is larger than the sum of its proper divisors (209094441631).

3554605507421 is a wasteful number, since it uses less digits than its factorization.

3554605507421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209094441630.

The product of its (nonzero) digits is 2520000, while the sum is 47.

The spelling of 3554605507421 in words is "three trillion, five hundred fifty-four billion, six hundred five million, five hundred seven thousand, four hundred twenty-one".