98145569677 has 2 divisors, whose sum is σ = 98145569678. Its totient is φ = 98145569676.

The previous prime is 98145569609. The next prime is 98145569699. The reversal of 98145569677 is 77696554189.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 96714158121 + 1431411556 = 310989^2 + 37834^2 .

It is an emirp because it is prime and its reverse (77696554189) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 98145569677 - 2¹⁹ = 98145045389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98145539677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49072784838 + 49072784839.

It is an arithmetic number, because the mean of its divisors is an integer number (49072784839).

Almost surely, 2^98145569677 is an apocalyptic number.

It is an amenable number.

98145569677 is a deficient number, since it is larger than the sum of its proper divisors (1).

98145569677 is an equidigital number, since it uses as much as digits as its factorization.

98145569677 is an evil number, because the sum of its binary digits is even.

The product of its digits is 114307200, while the sum is 67.

The spelling of 98145569677 in words is "ninety-eight billion, one hundred forty-five million, five hundred sixty-nine thousand, six hundred seventy-seven".