360778781249 has 2 divisors, whose sum is σ = 360778781250. Its totient is φ = 360778781248.

The previous prime is 360778781179. The next prime is 360778781261. The reversal of 360778781249 is 942187877063.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 276660220225 + 84118561024 = 525985^2 + 290032^2 .

It is a cyclic number.

It is not a de Polignac number, because 360778781249 - 2⁸ = 360778780993 is a prime.

It is a super-2 number, since 2×360778781249² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 360778781191 and 360778781200.

It is not a weakly prime, because it can be changed into another prime (360778781749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 180389390624 + 180389390625.

It is an arithmetic number, because the mean of its divisors is an integer number (180389390625).

Almost surely, 2^360778781249 is an apocalyptic number.

It is an amenable number.

360778781249 is a deficient number, since it is larger than the sum of its proper divisors (1).

360778781249 is an equidigital number, since it uses as much as digits as its factorization.

360778781249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28449792, while the sum is 62.

The spelling of 360778781249 in words is "three hundred sixty billion, seven hundred seventy-eight million, seven hundred eighty-one thousand, two hundred forty-nine".