7841679225 has 24 divisors (see below), whose sum is σ = 13528604352. Its totient is φ = 4000392000.

The previous prime is 7841679173. The next prime is 7841679227. The reversal of 7841679225 is 5229761487.

It is a happy number.

It is not a de Polignac number, because 7841679225 - 2⁶ = 7841679161 is a prime.

It is a super-2 number, since 2×7841679225² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7841679227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2271226 + ... + 2274675.

It is an arithmetic number, because the mean of its divisors is an integer number (563691848).

Almost surely, 2^7841679225 is an apocalyptic number.

7841679225 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

7841679225 is a deficient number, since it is larger than the sum of its proper divisors (5686925127).

7841679225 is a wasteful number, since it uses less digits than its factorization.

7841679225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4545937 (or 4545932 counting only the distinct ones).

The product of its digits is 1693440, while the sum is 51.

The square root of 7841679225 is about 88553.2564336287. The cubic root of 7841679225 is about 1986.7185995156.

It can be divided in two parts, 78416 and 79225, that added together give a triangular number (157641 = T₅₆₁).

The spelling of 7841679225 in words is "seven billion, eight hundred forty-one million, six hundred seventy-nine thousand, two hundred twenty-five".