130805827538 has 4 divisors (see below), whose sum is σ = 196208741310. Its totient is φ = 65402913768.

The previous prime is 130805827501. The next prime is 130805827547. The reversal of 130805827538 is 835728508031.

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

It can be written as a sum of positive squares in only one way, i.e., 130713340849 + 92486689 = 361543^2 + 9617^2 .

It is a super-2 number, since 2×130805827538² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32701456883 + ... + 32701456886.

Almost surely, 2^130805827538 is an apocalyptic number.

130805827538 is a deficient number, since it is larger than the sum of its proper divisors (65402913772).

130805827538 is an equidigital number, since it uses as much as digits as its factorization.

130805827538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65402913771.

The product of its (nonzero) digits is 1612800, while the sum is 50.

The spelling of 130805827538 in words is "one hundred thirty billion, eight hundred five million, eight hundred twenty-seven thousand, five hundred thirty-eight".