47131187057 has 2 divisors, whose sum is σ = 47131187058. Its totient is φ = 47131187056.

The previous prime is 47131187021. The next prime is 47131187101. The reversal of 47131187057 is 75078113174.

It is an a-pointer prime, because the next prime (47131187101) can be obtained adding 47131187057 to its sum of digits (44).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38996770576 + 8134416481 = 197476^2 + 90191^2 .

It is a cyclic number.

It is not a de Polignac number, because 47131187057 - 2¹² = 47131182961 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 47131186999 and 47131187017.

It is not a weakly prime, because it can be changed into another prime (47131187017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23565593528 + 23565593529.

It is an arithmetic number, because the mean of its divisors is an integer number (23565593529).

Almost surely, 2^47131187057 is an apocalyptic number.

It is an amenable number.

47131187057 is a deficient number, since it is larger than the sum of its proper divisors (1).

47131187057 is an equidigital number, since it uses as much as digits as its factorization.

47131187057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 164640, while the sum is 44.

The spelling of 47131187057 in words is "forty-seven billion, one hundred thirty-one million, one hundred eighty-seven thousand, fifty-seven".