140236446344849 has 2 divisors, whose sum is σ = 140236446344850. Its totient is φ = 140236446344848.

The previous prime is 140236446344837. The next prime is 140236446344933. The reversal of 140236446344849 is 948443644632041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 139554883822225 + 681562522624 = 11813335^2 + 825568^2 .

It is a cyclic number.

It is not a de Polignac number, because 140236446344849 - 2⁴ = 140236446344833 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 140236446344791 and 140236446344800.

It is not a weakly prime, because it can be changed into another prime (140236446344549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70118223172424 + 70118223172425.

It is an arithmetic number, because the mean of its divisors is an integer number (70118223172425).

Almost surely, 2^{140236446344849} is an apocalyptic number.

It is an amenable number.

140236446344849 is a deficient number, since it is larger than the sum of its proper divisors (1).

140236446344849 is an equidigital number, since it uses as much as digits as its factorization.

140236446344849 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 191102976, while the sum is 62.

The spelling of 140236446344849 in words is "one hundred forty trillion, two hundred thirty-six billion, four hundred forty-six million, three hundred forty-four thousand, eight hundred forty-nine".