13250006857 has 2 divisors, whose sum is σ = 13250006858. Its totient is φ = 13250006856.

The previous prime is 13250006843. The next prime is 13250006933. The reversal of 13250006857 is 75860005231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13011736761 + 238270096 = 114069^2 + 15436^2 .

It is a cyclic number.

It is not a de Polignac number, because 13250006857 - 2¹⁹ = 13249482569 is a prime.

It is not a weakly prime, because it can be changed into another prime (13250006657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6625003428 + 6625003429.

It is an arithmetic number, because the mean of its divisors is an integer number (6625003429).

Almost surely, 2^13250006857 is an apocalyptic number.

It is an amenable number.

13250006857 is a deficient number, since it is larger than the sum of its proper divisors (1).

13250006857 is an equidigital number, since it uses as much as digits as its factorization.

13250006857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 50400, while the sum is 37.

The spelling of 13250006857 in words is "thirteen billion, two hundred fifty million, six thousand, eight hundred fifty-seven".