7740047136 has 24 divisors (see below), whose sum is σ = 20317623984. Its totient is φ = 2580015680.

The previous prime is 7740047129. The next prime is 7740047153. The reversal of 7740047136 is 6317400477.

It is a tau number, because it is divible by the number of its divisors (24).

It is a junction number, because it is equal to n+sod(n) for n = 7740047094 and 7740047103.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 40312650 + ... + 40312841.

It is an arithmetic number, because the mean of its divisors is an integer number (846567666).

Almost surely, 2^7740047136 is an apocalyptic number.

It is an amenable number.

7740047136 is an abundant number, since it is smaller than the sum of its proper divisors (12577576848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7740047136 is a wasteful number, since it uses less digits than its factorization.

7740047136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80625504 (or 80625496 counting only the distinct ones).

The product of its (nonzero) digits is 98784, while the sum is 39.

The square root of 7740047136 is about 87977.5376786598. The cubic root of 7740047136 is about 1978.0982944736.

The spelling of 7740047136 in words is "seven billion, seven hundred forty million, forty-seven thousand, one hundred thirty-six".