7641430918 has 12 divisors (see below), whose sum is σ = 12504830652. Its totient is φ = 3473191320.

The previous prime is 7641430913. The next prime is 7641430919. The reversal of 7641430918 is 8190341467.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7641430913) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 400696 + ... + 419332.

It is an arithmetic number, because the mean of its divisors is an integer number (1042069221).

Almost surely, 2^7641430918 is an apocalyptic number.

7641430918 is a deficient number, since it is larger than the sum of its proper divisors (4863399734).

7641430918 is an frugal number, since it uses more digits than its factorization.

7641430918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37287 (or 18650 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 7641430918 is about 87415.2785158293. The cubic root of 7641430918 is about 1969.6613534894.

The spelling of 7641430918 in words is "seven billion, six hundred forty-one million, four hundred thirty thousand, nine hundred eighteen".