5499775778238 has 80 divisors (see below), whose sum is σ = 14086293977184. Its totient is φ = 1571117705280.

The previous prime is 5499775778191. The next prime is 5499775778251. The reversal of 5499775778238 is 8328775779945.

It is a happy number.

5499775778238 is a `hidden beast` number, since 5 + 4 + 9 + 9 + 7 + 7 + 577 + 8 + 2 + 38 = 666.

It is a super-2 number, since 2×5499775778238² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (81).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 6903756 + ... + 7659072.

Almost surely, 2^{5499775778238} is an apocalyptic number.

5499775778238 is an abundant number, since it is smaller than the sum of its proper divisors (8586518198946).

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

5499775778238 is a wasteful number, since it uses less digits than its factorization.

5499775778238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761759 (or 761750 counting only the distinct ones).

The product of its digits is 7468070400, while the sum is 81.

The spelling of 5499775778238 in words is "five trillion, four hundred ninety-nine billion, seven hundred seventy-five million, seven hundred seventy-eight thousand, two hundred thirty-eight".