98720278875 has 160 divisors (see below), whose sum is σ = 190692902400. Its totient is φ = 50761728000.

The previous prime is 98720278837. The next prime is 98720278889. The reversal of 98720278875 is 57887202789.

It is not a de Polignac number, because 98720278875 - 2²⁵ = 98686724443 is a prime.

It is a super-2 number, since 2×98720278875² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 128374491 + ... + 128375259.

It is an arithmetic number, because the mean of its divisors is an integer number (1191830640).

Almost surely, 2^98720278875 is an apocalyptic number.

98720278875 is a deficient number, since it is larger than the sum of its proper divisors (91972623525).

98720278875 is a wasteful number, since it uses less digits than its factorization.

98720278875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1236 (or 1217 counting only the distinct ones).

The product of its (nonzero) digits is 31610880, while the sum is 63.

The spelling of 98720278875 in words is "ninety-eight billion, seven hundred twenty million, two hundred seventy-eight thousand, eight hundred seventy-five".