3425533131621 has 8 divisors (see below), whose sum is σ = 4570937434080. Its totient is φ = 2281908791792.

The previous prime is 3425533131593. The next prime is 3425533131637. The reversal of 3425533131621 is 1261313355243.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3425533131621 - 2¹¹ = 3425533129573 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3425533131621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3425533131121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 444986166 + ... + 444993863.

It is an arithmetic number, because the mean of its divisors is an integer number (571367179260).

Almost surely, 2^{3425533131621} is an apocalyptic number.

It is an amenable number.

3425533131621 is a deficient number, since it is larger than the sum of its proper divisors (1145404302459).

3425533131621 is a wasteful number, since it uses less digits than its factorization.

3425533131621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 889981315.

The product of its digits is 194400, while the sum is 39.

Adding to 3425533131621 its reverse (1261313355243), we get a palindrome (4686846486864).

The spelling of 3425533131621 in words is "three trillion, four hundred twenty-five billion, five hundred thirty-three million, one hundred thirty-one thousand, six hundred twenty-one".