247025740189 has 2 divisors, whose sum is σ = 247025740190. Its totient is φ = 247025740188.

The previous prime is 247025740103. The next prime is 247025740223. The reversal of 247025740189 is 981047520742.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 159074940964 + 87950799225 = 398842^2 + 296565^2 .

It is a cyclic number.

It is not a de Polignac number, because 247025740189 - 2²⁵ = 246992185757 is a prime.

It is a super-2 number, since 2×247025740189² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (247025741189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123512870094 + 123512870095.

It is an arithmetic number, because the mean of its divisors is an integer number (123512870095).

Almost surely, 2^247025740189 is an apocalyptic number.

It is an amenable number.

247025740189 is a deficient number, since it is larger than the sum of its proper divisors (1).

247025740189 is an equidigital number, since it uses as much as digits as its factorization.

247025740189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1128960, while the sum is 49.

The spelling of 247025740189 in words is "two hundred forty-seven billion, twenty-five million, seven hundred forty thousand, one hundred eighty-nine".