12850371761 has 2 divisors, whose sum is σ = 12850371762. Its totient is φ = 12850371760.

The previous prime is 12850371739. The next prime is 12850371767. The reversal of 12850371761 is 16717305821.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9553889536 + 3296482225 = 97744^2 + 57415^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12850371761 is a prime.

It is a super-2 number, since 2×12850371761² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12850371767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6425185880 + 6425185881.

It is an arithmetic number, because the mean of its divisors is an integer number (6425185881).

Almost surely, 2^12850371761 is an apocalyptic number.

It is an amenable number.

12850371761 is a deficient number, since it is larger than the sum of its proper divisors (1).

12850371761 is an equidigital number, since it uses as much as digits as its factorization.

12850371761 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 70560, while the sum is 41.

The spelling of 12850371761 in words is "twelve billion, eight hundred fifty million, three hundred seventy-one thousand, seven hundred sixty-one".