11347646657 has 2 divisors, whose sum is σ = 11347646658. Its totient is φ = 11347646656.

The previous prime is 11347646641. The next prime is 11347646683. The reversal of 11347646657 is 75664674311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6685351696 + 4662294961 = 81764^2 + 68281^2 .

It is an emirp because it is prime and its reverse (75664674311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11347646657 - 2⁴ = 11347646641 is a prime.

It is not a weakly prime, because it can be changed into another prime (11347646617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5673823328 + 5673823329.

It is an arithmetic number, because the mean of its divisors is an integer number (5673823329).

Almost surely, 2^11347646657 is an apocalyptic number.

It is an amenable number.

11347646657 is a deficient number, since it is larger than the sum of its proper divisors (1).

11347646657 is an equidigital number, since it uses as much as digits as its factorization.

11347646657 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2540160, while the sum is 50.

The spelling of 11347646657 in words is "eleven billion, three hundred forty-seven million, six hundred forty-six thousand, six hundred fifty-seven".