3455444316621 has 16 divisors (see below), whose sum is σ = 5133039141888. Its totient is φ = 2049651044400.

The previous prime is 3455444316619. The next prime is 3455444316689. The reversal of 3455444316621 is 1266134445543.

It is not a de Polignac number, because 3455444316621 - 2¹ = 3455444316619 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3455444316721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1113939235 + ... + 1113942336.

It is an arithmetic number, because the mean of its divisors is an integer number (320814946368).

Almost surely, 2^{3455444316621} is an apocalyptic number.

It is an amenable number.

3455444316621 is a deficient number, since it is larger than the sum of its proper divisors (1677594825267).

3455444316621 is a wasteful number, since it uses less digits than its factorization.

3455444316621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2227881632.

The product of its digits is 4147200, while the sum is 48.

The spelling of 3455444316621 in words is "three trillion, four hundred fifty-five billion, four hundred forty-four million, three hundred sixteen thousand, six hundred twenty-one".