245102466412549 has 2 divisors, whose sum is σ = 245102466412550. Its totient is φ = 245102466412548.

The previous prime is 245102466412547. The next prime is 245102466412597. The reversal of 245102466412549 is 945214664201542.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 133937453728225 + 111165012684324 = 11573135^2 + 10543482^2 .

It is a cyclic number.

It is not a de Polignac number, because 245102466412549 - 2¹ = 245102466412547 is a prime.

It is a super-4 number, since 4×245102466412549⁴ (a number of 59 digits) contains 4444 as substring.

Together with 245102466412547, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 245102466412549.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245102466412543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122551233206274 + 122551233206275.

It is an arithmetic number, because the mean of its divisors is an integer number (122551233206275).

Almost surely, 2^{245102466412549} is an apocalyptic number.

It is an amenable number.

245102466412549 is a deficient number, since it is larger than the sum of its proper divisors (1).

245102466412549 is an equidigital number, since it uses as much as digits as its factorization.

245102466412549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16588800, while the sum is 55.

The spelling of 245102466412549 in words is "two hundred forty-five trillion, one hundred two billion, four hundred sixty-six million, four hundred twelve thousand, five hundred forty-nine".