538257342253251 has 8 divisors (see below), whose sum is σ = 717678188200720. Its totient is φ = 358837362237312.

The previous prime is 538257342253237. The next prime is 538257342253429. The reversal of 538257342253251 is 152352243752835.

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

It is not a de Polignac number, because 538257342253251 - 2¹³ = 538257342245059 is a prime.

It is a super-3 number, since 3×538257342253251³ (a number of 45 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 538257342253191 and 538257342253200.

It is not an unprimeable number, because it can be changed into a prime (538257342253231) 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, 215031106 + ... + 217519863.

It is an arithmetic number, because the mean of its divisors is an integer number (89709773525090).

Almost surely, 2^{538257342253251} is an apocalyptic number.

538257342253251 is a deficient number, since it is larger than the sum of its proper divisors (179420845947469).

538257342253251 is a wasteful number, since it uses less digits than its factorization.

538257342253251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432965765.

The product of its digits is 60480000, while the sum is 57.

The spelling of 538257342253251 in words is "five hundred thirty-eight trillion, two hundred fifty-seven billion, three hundred forty-two million, two hundred fifty-three thousand, two hundred fifty-one".