618042172 has 24 divisors (see below), whose sum is σ = 1182101760. Its totient is φ = 280403760.

The previous prime is 618042167. The next prime is 618042181. The reversal of 618042172 is 271240816.

618042172 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×618042172² = 763952252740955168, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11229 + ... + 36907.

It is an arithmetic number, because the mean of its divisors is an integer number (49254240).

Almost surely, 2^618042172 is an apocalyptic number.

It is an amenable number.

618042172 is a deficient number, since it is larger than the sum of its proper divisors (564059588).

618042172 is a wasteful number, since it uses less digits than its factorization.

618042172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26241 (or 26239 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 618042172 is about 24860.4539781557. The cubic root of 618042172 is about 851.8034015590.

Adding to 618042172 its reverse (271240816), we get a palindrome (889282988).

The spelling of 618042172 in words is "six hundred eighteen million, forty-two thousand, one hundred seventy-two".