5391641628 has 144 divisors (see below), whose sum is σ = 14835649920. Its totient is φ = 1645183872.

The previous prime is 5391641597. The next prime is 5391641639. The reversal of 5391641628 is 8261461935.

5391641628 is a `hidden beast` number, since 5 + 3 + 9 + 16 + 4 + 1 + 628 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4124551 + ... + 4125857.

Almost surely, 2^5391641628 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5391641628, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7417824960).

5391641628 is an abundant number, since it is smaller than the sum of its proper divisors (9444008292).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5391641628 is a wasteful number, since it uses less digits than its factorization.

5391641628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1536 (or 1531 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 5391641628 is about 73427.7987413486. The cubic root of 5391641628 is about 1753.5049892740.

The spelling of 5391641628 in words is "five billion, three hundred ninety-one million, six hundred forty-one thousand, six hundred twenty-eight".