7924681745 has 8 divisors (see below), whose sum is σ = 9816380160. Its totient is φ = 6135237360.

The previous prime is 7924681693. The next prime is 7924681753. The reversal of 7924681745 is 5471864297.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7924681745 - 2²⁰ = 7923633169 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25563335 + ... + 25563644.

It is an arithmetic number, because the mean of its divisors is an integer number (1227047520).

Almost surely, 2^7924681745 is an apocalyptic number.

It is an amenable number.

7924681745 is a deficient number, since it is larger than the sum of its proper divisors (1891698415).

7924681745 is a wasteful number, since it uses less digits than its factorization.

7924681745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51127015.

The product of its digits is 3386880, while the sum is 53.

The square root of 7924681745 is about 89020.6815577144. The cubic root of 7924681745 is about 1993.7036777136.

The spelling of 7924681745 in words is "seven billion, nine hundred twenty-four million, six hundred eighty-one thousand, seven hundred forty-five".