98772761449 has 2 divisors, whose sum is σ = 98772761450. Its totient is φ = 98772761448.

The previous prime is 98772761431. The next prime is 98772761453. The reversal of 98772761449 is 94416727789.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 88030890000 + 10741871449 = 296700^2 + 103643^2 .

It is a cyclic number.

It is not a de Polignac number, because 98772761449 - 2¹⁷ = 98772630377 is a prime.

It is a super-2 number, since 2×98772761449² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (98772761489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49386380724 + 49386380725.

It is an arithmetic number, because the mean of its divisors is an integer number (49386380725).

Almost surely, 2^98772761449 is an apocalyptic number.

It is an amenable number.

98772761449 is a deficient number, since it is larger than the sum of its proper divisors (1).

98772761449 is an equidigital number, since it uses as much as digits as its factorization.

98772761449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 42674688, while the sum is 64.

The spelling of 98772761449 in words is "ninety-eight billion, seven hundred seventy-two million, seven hundred sixty-one thousand, four hundred forty-nine".