18172837041 has 8 divisors (see below), whose sum is σ = 24231967200. Its totient is φ = 12114465792.

The previous prime is 18172836977. The next prime is 18172837091. The reversal of 18172837041 is 14073827181.

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

It is not a de Polignac number, because 18172837041 - 2⁶ = 18172836977 is a prime.

It is a super-2 number, since 2×18172837041² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 18172836984 and 18172837002.

It is not an unprimeable number, because it can be changed into a prime (18172837091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131280 + ... + 231473.

It is an arithmetic number, because the mean of its divisors is an integer number (3028995900).

Almost surely, 2^18172837041 is an apocalyptic number.

It is an amenable number.

18172837041 is a deficient number, since it is larger than the sum of its proper divisors (6059130159).

18172837041 is a wasteful number, since it uses less digits than its factorization.

18172837041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379455.

The product of its (nonzero) digits is 75264, while the sum is 42.

The spelling of 18172837041 in words is "eighteen billion, one hundred seventy-two million, eight hundred thirty-seven thousand, forty-one".