98888864444431 has 16 divisors (see below), whose sum is σ = 106683357463200. Its totient is φ = 91314156930048.

The previous prime is 98888864444389. The next prime is 98888864444471. The reversal of 98888864444431 is 13444446888889.

It is a cyclic number.

It is not a de Polignac number, because 98888864444431 - 2²⁵ = 98888830889999 is a prime.

It is a super-2 number, since 2×98888864444431² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98888864444471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50631955 + ... + 52548763.

It is an arithmetic number, because the mean of its divisors is an integer number (6667709841450).

Almost surely, 2^{98888864444431} is an apocalyptic number.

98888864444431 is a deficient number, since it is larger than the sum of its proper divisors (7794493018769).

98888864444431 is a wasteful number, since it uses less digits than its factorization.

98888864444431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1974138.

The product of its digits is 5435817984, while the sum is 79.

The spelling of 98888864444431 in words is "ninety-eight trillion, eight hundred eighty-eight billion, eight hundred sixty-four million, four hundred forty-four thousand, four hundred thirty-one".