47038145795657 has 2 divisors, whose sum is σ = 47038145795658. Its totient is φ = 47038145795656.

The previous prime is 47038145795621. The next prime is 47038145795671. The reversal of 47038145795657 is 75659754183074.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41221998430096 + 5816147365561 = 6420436^2 + 2411669^2 .

It is a cyclic number.

It is not a de Polignac number, because 47038145795657 - 2⁸ = 47038145795401 is a prime.

It is not a weakly prime, because it can be changed into another prime (47038145794657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23519072897828 + 23519072897829.

It is an arithmetic number, because the mean of its divisors is an integer number (23519072897829).

Almost surely, 2^{47038145795657} is an apocalyptic number.

It is an amenable number.

47038145795657 is a deficient number, since it is larger than the sum of its proper divisors (1).

47038145795657 is an equidigital number, since it uses as much as digits as its factorization.

47038145795657 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 889056000, while the sum is 71.

The spelling of 47038145795657 in words is "forty-seven trillion, thirty-eight billion, one hundred forty-five million, seven hundred ninety-five thousand, six hundred fifty-seven".