5381559638 has 96 divisors (see below), whose sum is σ = 10630025280. Its totient is φ = 1987372800.

The previous prime is 5381559611. The next prime is 5381559649. The reversal of 5381559638 is 8369551835.

It is a super-2 number, since 2×5381559638² = 57922368274701382088, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 5381559638.

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, 5071628 + ... + 5072688.

It is an arithmetic number, because the mean of its divisors is an integer number (110729430).

Almost surely, 2^5381559638 is an apocalyptic number.

5381559638 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

5381559638 is a deficient number, since it is larger than the sum of its proper divisors (5248465642).

5381559638 is a wasteful number, since it uses less digits than its factorization.

5381559638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1174 (or 1143 counting only the distinct ones).

The product of its digits is 3888000, while the sum is 53.

The square root of 5381559638 is about 73359.1142122095. The cubic root of 5381559638 is about 1752.4113303706.

The spelling of 5381559638 in words is "five billion, three hundred eighty-one million, five hundred fifty-nine thousand, six hundred thirty-eight".