7779934225 has 12 divisors (see below), whose sum is σ = 11025278464. Its totient is φ = 5334811920.

The previous prime is 7779934219. The next prime is 7779934297. The reversal of 7779934225 is 5224399777.

It is a happy number.

It is not a de Polignac number, because 7779934225 - 2²⁷ = 7645716497 is a prime.

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22228209 + ... + 22228558.

Almost surely, 2^7779934225 is an apocalyptic number.

It is an amenable number.

7779934225 is a deficient number, since it is larger than the sum of its proper divisors (3245344239).

7779934225 is a wasteful number, since it uses less digits than its factorization.

7779934225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44456784 (or 44456779 counting only the distinct ones).

The product of its digits is 6667920, while the sum is 55.

The square root of 7779934225 is about 88203.9354280749. The cubic root of 7779934225 is about 1981.4904114386.

The spelling of 7779934225 in words is "seven billion, seven hundred seventy-nine million, nine hundred thirty-four thousand, two hundred twenty-five".