538263357697 has 8 divisors (see below), whose sum is σ = 580213559744. Its totient is φ = 496391059728.

The previous prime is 538263357679. The next prime is 538263357727. The reversal of 538263357697 is 796753362835.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-538263357697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (538263357397) 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, 19461663 + ... + 19489300.

It is an arithmetic number, because the mean of its divisors is an integer number (72526694968).

Almost surely, 2^538263357697 is an apocalyptic number.

It is an amenable number.

538263357697 is a deficient number, since it is larger than the sum of its proper divisors (41950202047).

538263357697 is a wasteful number, since it uses less digits than its factorization.

538263357697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38952039.

The product of its digits is 171460800, while the sum is 64.

The spelling of 538263357697 in words is "five hundred thirty-eight billion, two hundred sixty-three million, three hundred fifty-seven thousand, six hundred ninety-seven".