544355421631 has 48 divisors (see below), whose sum is σ = 677943617760. Its totient is φ = 434492190720.

The previous prime is 544355421613. The next prime is 544355421637. The reversal of 544355421631 is 136124553445.

It is not a de Polignac number, because 544355421631 - 2⁷ = 544355421503 is a prime.

It is a super-2 number, since 2×544355421631² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (544355421637) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 129083835 + ... + 129088051.

It is an arithmetic number, because the mean of its divisors is an integer number (14123825370).

Almost surely, 2^544355421631 is an apocalyptic number.

544355421631 is a deficient number, since it is larger than the sum of its proper divisors (133588196129).

544355421631 is a wasteful number, since it uses less digits than its factorization.

544355421631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6584 (or 6577 counting only the distinct ones).

The product of its digits is 864000, while the sum is 43.

The spelling of 544355421631 in words is "five hundred forty-four billion, three hundred fifty-five million, four hundred twenty-one thousand, six hundred thirty-one".