98763646891 has 8 divisors (see below), whose sum is σ = 121555257824. Its totient is φ = 78142665600.

The previous prime is 98763646853. The next prime is 98763646909. The reversal of 98763646891 is 19864636789.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98763646891 is a prime.

It is not an unprimeable number, because it can be changed into a prime (98763146891) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 542657310 + ... + 542657491.

It is an arithmetic number, because the mean of its divisors is an integer number (15194407228).

Almost surely, 2^98763646891 is an apocalyptic number.

98763646891 is a gapful number since it is divisible by the number (91) formed by its first and last digit.

98763646891 is a deficient number, since it is larger than the sum of its proper divisors (22791610933).

98763646891 is a wasteful number, since it uses less digits than its factorization.

98763646891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1085314821.

The product of its digits is 94058496, while the sum is 67.

The spelling of 98763646891 in words is "ninety-eight billion, seven hundred sixty-three million, six hundred forty-six thousand, eight hundred ninety-one".