18761609741 has 8 divisors (see below), whose sum is σ = 21445681920. Its totient is φ = 16078498128.

The previous prime is 18761609731. The next prime is 18761609747. The reversal of 18761609741 is 14790616781.

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

It is not a de Polignac number, because 18761609741 - 2²² = 18757415437 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 18761609741.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18761609747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197786 + ... + 276843.

It is an arithmetic number, because the mean of its divisors is an integer number (2680710240).

Almost surely, 2^18761609741 is an apocalyptic number.

It is an amenable number.

18761609741 is a deficient number, since it is larger than the sum of its proper divisors (2684072179).

18761609741 is an equidigital number, since it uses as much as digits as its factorization.

18761609741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480283.

The product of its (nonzero) digits is 508032, while the sum is 50.

The spelling of 18761609741 in words is "eighteen billion, seven hundred sixty-one million, six hundred nine thousand, seven hundred forty-one".