98407863749 has 4 divisors (see below), whose sum is σ = 105977699436. Its totient is φ = 90838028064.

The previous prime is 98407863713. The next prime is 98407863767. The reversal of 98407863749 is 94736870489.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 94736870489 = 77369 ⋅1224481.

It can be written as a sum of positive squares in 2 ways, for example, as 23383914724 + 75023949025 = 152918^2 + 273905^2 .

It is a cyclic number.

It is not a de Polignac number, because 98407863749 - 2⁸ = 98407863493 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98407863949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3784917824 + ... + 3784917849.

It is an arithmetic number, because the mean of its divisors is an integer number (26494424859).

Almost surely, 2^98407863749 is an apocalyptic number.

It is an amenable number.

98407863749 is a deficient number, since it is larger than the sum of its proper divisors (7569835687).

98407863749 is a wasteful number, since it uses less digits than its factorization.

98407863749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7569835686.

The product of its (nonzero) digits is 73156608, while the sum is 65.

The spelling of 98407863749 in words is "ninety-eight billion, four hundred seven million, eight hundred sixty-three thousand, seven hundred forty-nine".