538670383717 has 2 divisors, whose sum is σ = 538670383718. Its totient is φ = 538670383716.

The previous prime is 538670383687. The next prime is 538670383781. The reversal of 538670383717 is 717383076835.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 497975794276 + 40694589441 = 705674^2 + 201729^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-538670383717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (538670383117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269335191858 + 269335191859.

It is an arithmetic number, because the mean of its divisors is an integer number (269335191859).

Almost surely, 2^538670383717 is an apocalyptic number.

It is an amenable number.

538670383717 is a deficient number, since it is larger than the sum of its proper divisors (1).

538670383717 is an equidigital number, since it uses as much as digits as its factorization.

538670383717 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17781120, while the sum is 58.

The spelling of 538670383717 in words is "five hundred thirty-eight billion, six hundred seventy million, three hundred eighty-three thousand, seven hundred seventeen".