247152772289 has 2 divisors, whose sum is σ = 247152772290. Its totient is φ = 247152772288.

The previous prime is 247152772241. The next prime is 247152772303. The reversal of 247152772289 is 982277251742.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 246504306064 + 648466225 = 496492^2 + 25465^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-247152772289 is a prime.

It is a super-2 number, since 2×247152772289² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (247152772219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123576386144 + 123576386145.

It is an arithmetic number, because the mean of its divisors is an integer number (123576386145).

Almost surely, 2^247152772289 is an apocalyptic number.

It is an amenable number.

247152772289 is a deficient number, since it is larger than the sum of its proper divisors (1).

247152772289 is an equidigital number, since it uses as much as digits as its factorization.

247152772289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7902720, while the sum is 56.

The spelling of 247152772289 in words is "two hundred forty-seven billion, one hundred fifty-two million, seven hundred seventy-two thousand, two hundred eighty-nine".