538265711551 has 4 divisors (see below), whose sum is σ = 538892331400. Its totient is φ = 537639091704.

The previous prime is 538265711537. The next prime is 538265711561. The reversal of 538265711551 is 155117562835.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 538265711551 - 2²³ = 538257322943 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 538265711495 and 538265711504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538265711561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 313308636 + ... + 313310353.

It is an arithmetic number, because the mean of its divisors is an integer number (134723082850).

Almost surely, 2^538265711551 is an apocalyptic number.

538265711551 is a deficient number, since it is larger than the sum of its proper divisors (626619849).

538265711551 is an equidigital number, since it uses as much as digits as its factorization.

538265711551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626619848.

The product of its digits is 1260000, while the sum is 49.

The spelling of 538265711551 in words is "five hundred thirty-eight billion, two hundred sixty-five million, seven hundred eleven thousand, five hundred fifty-one".