5644264543551 has 6 divisors (see below), whose sum is σ = 8152826562920. Its totient is φ = 3762843029028.

The previous prime is 5644264543549. The next prime is 5644264543553. The reversal of 5644264543551 is 1553454624465.

5644264543551 is a `hidden beast` number, since 5 + 6 + 4 + 4 + 2 + 6 + 45 + 43 + 551 = 666.

It is an interprime number because it is at equal distance from previous prime (5644264543549) and next prime (5644264543553).

It is not a de Polignac number, because 5644264543551 - 2¹ = 5644264543549 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 (5644264543553) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 313570252411 + ... + 313570252428.

Almost surely, 2^{5644264543551} is an apocalyptic number.

5644264543551 is a deficient number, since it is larger than the sum of its proper divisors (2508562019369).

5644264543551 is a wasteful number, since it uses less digits than its factorization.

5644264543551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 627140504845 (or 627140504842 counting only the distinct ones).

The product of its digits is 34560000, while the sum is 54.

The spelling of 5644264543551 in words is "five trillion, six hundred forty-four billion, two hundred sixty-four million, five hundred forty-three thousand, five hundred fifty-one".