47478675757 has 4 divisors (see below), whose sum is σ = 47497304700. Its totient is φ = 47460046816.

The previous prime is 47478675737. The next prime is 47478675817. The reversal of 47478675757 is 75757687474.

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

It can be written as a sum of positive squares in 2 ways, for example, as 35514910116 + 11963765641 = 188454^2 + 109379^2 .

It is a cyclic number.

It is not a de Polignac number, because 47478675757 - 2²³ = 47470287149 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47478675692 and 47478675701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47478675737) 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 3 ways as a sum of consecutive naturals, for example, 9310648 + ... + 9315745.

It is an arithmetic number, because the mean of its divisors is an integer number (11874326175).

Almost surely, 2^47478675757 is an apocalyptic number.

It is an amenable number.

47478675757 is a deficient number, since it is larger than the sum of its proper divisors (18628943).

47478675757 is a wasteful number, since it uses less digits than its factorization.

47478675757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18628942.

The product of its digits is 322694400, while the sum is 67.

The spelling of 47478675757 in words is "forty-seven billion, four hundred seventy-eight million, six hundred seventy-five thousand, seven hundred fifty-seven".