18825516741 has 4 divisors (see below), whose sum is σ = 25100688992. Its totient is φ = 12550344492.

The previous prime is 18825516719. The next prime is 18825516751. The reversal of 18825516741 is 14761552881.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 18825516741 - 2¹⁴ = 18825500357 is a prime.

It is a super-2 number, since 2×18825516741² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18825516701) 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, 3137586121 + ... + 3137586126.

It is an arithmetic number, because the mean of its divisors is an integer number (6275172248).

Almost surely, 2^18825516741 is an apocalyptic number.

It is an amenable number.

18825516741 is a deficient number, since it is larger than the sum of its proper divisors (6275172251).

18825516741 is an equidigital number, since it uses as much as digits as its factorization.

18825516741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6275172250.

The product of its digits is 537600, while the sum is 48.

The spelling of 18825516741 in words is "eighteen billion, eight hundred twenty-five million, five hundred sixteen thousand, seven hundred forty-one".