128098738851 has 8 divisors (see below), whose sum is σ = 170961142800. Its totient is φ = 85317747072.

The previous prime is 128098738837. The next prime is 128098738871. The reversal of 128098738851 is 158837890821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 128098738851 - 2¹³ = 128098730659 is a prime.

It is a super-3 number, since 3×128098738851³ (a number of 34 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (128098738871) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20349370 + ... + 20355663.

It is an arithmetic number, because the mean of its divisors is an integer number (21370142850).

Almost surely, 2^128098738851 is an apocalyptic number.

128098738851 is a deficient number, since it is larger than the sum of its proper divisors (42862403949).

128098738851 is a wasteful number, since it uses less digits than its factorization.

128098738851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40706085.

The product of its (nonzero) digits is 7741440, while the sum is 60.

The spelling of 128098738851 in words is "one hundred twenty-eight billion, ninety-eight million, seven hundred thirty-eight thousand, eight hundred fifty-one".