538354768991 has 8 divisors (see below), whose sum is σ = 587105494080. Its totient is φ = 490652446752.

The previous prime is 538354768969. The next prime is 538354769011. The reversal of 538354768991 is 199867453835.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 538354768991 - 2⁶ = 538354768927 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 (538354768901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 262099640 + ... + 262101693.

It is an arithmetic number, because the mean of its divisors is an integer number (73388186760).

Almost surely, 2^538354768991 is an apocalyptic number.

538354768991 is a deficient number, since it is larger than the sum of its proper divisors (48750725089).

538354768991 is a wasteful number, since it uses less digits than its factorization.

538354768991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524201425.

The product of its digits is 195955200, while the sum is 68.

The spelling of 538354768991 in words is "five hundred thirty-eight billion, three hundred fifty-four million, seven hundred sixty-eight thousand, nine hundred ninety-one".