5538694812 has 72 divisors (see below), whose sum is σ = 15047190144. Its totient is φ = 1581054048.

The previous prime is 5538694793. The next prime is 5538694817. The reversal of 5538694812 is 2184968355.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5538694817) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 764913 + ... + 772119.

It is an arithmetic number, because the mean of its divisors is an integer number (208988752).

Almost surely, 2^5538694812 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 5538694812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7523595072).

5538694812 is an abundant number, since it is smaller than the sum of its proper divisors (9508495332).

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

5538694812 is a wasteful number, since it uses less digits than its factorization.

5538694812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8535 (or 8526 counting only the distinct ones).

The product of its digits is 2073600, while the sum is 51.

The square root of 5538694812 is about 74422.4079965167. The cubic root of 5538694812 is about 1769.3040782945.

The spelling of 5538694812 in words is "five billion, five hundred thirty-eight million, six hundred ninety-four thousand, eight hundred twelve".