10381625534809 has 3 divisors (see below), whose sum is σ = 10381628756863. Its totient is φ = 10381622312756.

The previous prime is 10381625534789. The next prime is 10381625534821. The reversal of 10381625534809 is 90843552618301.

The square root of 10381625534809 is 3222053.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 8105836055625 + 2275789479184 = 2847075^2 + 1508572^2 .

It is not a de Polignac number, because 10381625534809 - 2¹⁵ = 10381625502041 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10381625534809.

It is not an unprimeable number, because it can be changed into a prime (10381625574809) by changing a digit.

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 in 2 ways as a sum of consecutive naturals, for example, 1611027 + ... + 4833079.

Almost surely, 2^{10381625534809} is an apocalyptic number.

10381625534809 is the 3222053-rd square number.

10381625534809 is the 1611027-th centered octagonal number.

It is an amenable number.

10381625534809 is a deficient number, since it is larger than the sum of its proper divisors (3222054).

10381625534809 is an frugal number, since it uses more digits than its factorization.

10381625534809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6444106 (or 3222053 counting only the distinct ones).

The product of its (nonzero) digits is 6220800, while the sum is 55.

The spelling of 10381625534809 in words is "ten trillion, three hundred eighty-one billion, six hundred twenty-five million, five hundred thirty-four thousand, eight hundred nine".