98438434455 has 16 divisors (see below), whose sum is σ = 159852265344. Its totient is φ = 51716908320.

The previous prime is 98438434421. The next prime is 98438434469. The reversal of 98438434455 is 55443483489.

It is not a de Polignac number, because 98438434455 - 2⁷ = 98438434327 is a prime.

It is a super-2 number, since 2×98438434455² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 98438434395 and 98438434404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48973341 + ... + 48975350.

It is an arithmetic number, because the mean of its divisors is an integer number (9990766584).

Almost surely, 2^98438434455 is an apocalyptic number.

98438434455 is a deficient number, since it is larger than the sum of its proper divisors (61413830889).

98438434455 is a wasteful number, since it uses less digits than its factorization.

98438434455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97948766.

The product of its digits is 33177600, while the sum is 57.

The spelling of 98438434455 in words is "ninety-eight billion, four hundred thirty-eight million, four hundred thirty-four thousand, four hundred fifty-five".