538508262466 has 8 divisors (see below), whose sum is σ = 810343105164. Its totient is φ = 268393894080.

The previous prime is 538508262437. The next prime is 538508262469. The reversal of 538508262466 is 664262805835.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 489270871441 + 49237391025 = 699479^2 + 221895^2 .

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

It is a super-2 number, since 2×538508262466² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (538508262469) 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, 430117795 + ... + 430119046.

Almost surely, 2^538508262466 is an apocalyptic number.

538508262466 is a deficient number, since it is larger than the sum of its proper divisors (271834842698).

538508262466 is a wasteful number, since it uses less digits than its factorization.

538508262466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 860237156.

The product of its (nonzero) digits is 16588800, while the sum is 55.

The spelling of 538508262466 in words is "five hundred thirty-eight billion, five hundred eight million, two hundred sixty-two thousand, four hundred sixty-six".