98540872751 has 4 divisors (see below), whose sum is σ = 99091380600. Its totient is φ = 97990364904.

The previous prime is 98540872721. The next prime is 98540872753. The reversal of 98540872751 is 15727804589.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15727804589 = 7 ⋅2246829227.

It is a cyclic number.

It is not a de Polignac number, because 98540872751 - 2¹⁰ = 98540871727 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98540872753) 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, 275253656 + ... + 275254013.

It is an arithmetic number, because the mean of its divisors is an integer number (24772845150).

Almost surely, 2^98540872751 is an apocalyptic number.

98540872751 is a deficient number, since it is larger than the sum of its proper divisors (550507849).

98540872751 is a wasteful number, since it uses less digits than its factorization.

98540872751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550507848.

The product of its (nonzero) digits is 5644800, while the sum is 56.

The spelling of 98540872751 in words is "ninety-eight billion, five hundred forty million, eight hundred seventy-two thousand, seven hundred fifty-one".