7725939047 has 4 divisors (see below), whose sum is σ = 7754660280. Its totient is φ = 7697217816.

The previous prime is 7725938999. The next prime is 7725939059. The reversal of 7725939047 is 7409395277.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 7725939047 - 2²⁰ = 7724890471 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7725939047.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7725939077) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14360213 + ... + 14360750.

It is an arithmetic number, because the mean of its divisors is an integer number (1938665070).

Almost surely, 2^7725939047 is an apocalyptic number.

7725939047 is a deficient number, since it is larger than the sum of its proper divisors (28721233).

7725939047 is a wasteful number, since it uses less digits than its factorization.

7725939047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28721232.

The product of its (nonzero) digits is 3333960, while the sum is 53.

The square root of 7725939047 is about 87897.3210456382. The cubic root of 7725939047 is about 1976.8957109349.

The spelling of 7725939047 in words is "seven billion, seven hundred twenty-five million, nine hundred thirty-nine thousand, forty-seven".