98128715267 has 4 divisors (see below), whose sum is σ = 107049507576. Its totient is φ = 89207922960.

The previous prime is 98128715249. The next prime is 98128715281. The reversal of 98128715267 is 76251782189.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98128715267 is a prime.

It is not an unprimeable number, because it can be changed into a prime (98128718267) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4460396138 + ... + 4460396159.

It is an arithmetic number, because the mean of its divisors is an integer number (26762376894).

Almost surely, 2^98128715267 is an apocalyptic number.

98128715267 is a deficient number, since it is larger than the sum of its proper divisors (8920792309).

98128715267 is a wasteful number, since it uses less digits than its factorization.

98128715267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8920792308.

The product of its digits is 3386880, while the sum is 56.

The spelling of 98128715267 in words is "ninety-eight billion, one hundred twenty-eight million, seven hundred fifteen thousand, two hundred sixty-seven".