47830873957 has 4 divisors (see below), whose sum is σ = 50644454796. Its totient is φ = 45017293120.

The previous prime is 47830873939. The next prime is 47830873967. The reversal of 47830873957 is 75937803874.

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 18838660516 + 28992213441 = 137254^2 + 170271^2 .

It is a cyclic number.

It is not a de Polignac number, because 47830873957 - 2¹⁵ = 47830841189 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47830873895 and 47830873904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47830873967) 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, 1406790394 + ... + 1406790427.

It is an arithmetic number, because the mean of its divisors is an integer number (12661113699).

Almost surely, 2^47830873957 is an apocalyptic number.

It is an amenable number.

47830873957 is a deficient number, since it is larger than the sum of its proper divisors (2813580839).

47830873957 is a wasteful number, since it uses less digits than its factorization.

47830873957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2813580838.

The product of its (nonzero) digits is 35562240, while the sum is 61.

The spelling of 47830873957 in words is "forty-seven billion, eight hundred thirty million, eight hundred seventy-three thousand, nine hundred fifty-seven".