98624755865 has 4 divisors (see below), whose sum is σ = 118349707044. Its totient is φ = 78899804688.

The previous prime is 98624755861. The next prime is 98624755939. The reversal of 98624755865 is 56855742689.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56855742689 = 9883 ⋅5752883.

It can be written as a sum of positive squares in 2 ways, for example, as 19900180624 + 78724575241 = 141068^2 + 280579^2 .

It is a cyclic number.

It is not a de Polignac number, because 98624755865 - 2² = 98624755861 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (98624755861) 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, 9862475582 + ... + 9862475591.

It is an arithmetic number, because the mean of its divisors is an integer number (29587426761).

Almost surely, 2^98624755865 is an apocalyptic number.

It is an amenable number.

98624755865 is a deficient number, since it is larger than the sum of its proper divisors (19724951179).

98624755865 is a wasteful number, since it uses less digits than its factorization.

98624755865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19724951178.

The product of its digits is 145152000, while the sum is 65.

The spelling of 98624755865 in words is "ninety-eight billion, six hundred twenty-four million, seven hundred fifty-five thousand, eight hundred sixty-five".