47725407857 has 2 divisors, whose sum is σ = 47725407858. Its totient is φ = 47725407856.

The previous prime is 47725407841. The next prime is 47725407871. The reversal of 47725407857 is 75870452774.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38243322481 + 9482085376 = 195559^2 + 97376^2 .

It is a cyclic number.

It is not a de Polignac number, because 47725407857 - 2⁴ = 47725407841 is a prime.

It is not a weakly prime, because it can be changed into another prime (47725407157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23862703928 + 23862703929.

It is an arithmetic number, because the mean of its divisors is an integer number (23862703929).

Almost surely, 2^47725407857 is an apocalyptic number.

It is an amenable number.

47725407857 is a deficient number, since it is larger than the sum of its proper divisors (1).

47725407857 is an equidigital number, since it uses as much as digits as its factorization.

47725407857 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15366400, while the sum is 56.

The spelling of 47725407857 in words is "forty-seven billion, seven hundred twenty-five million, four hundred seven thousand, eight hundred fifty-seven".