102609728882 has 4 divisors (see below), whose sum is σ = 153914593326. Its totient is φ = 51304864440.

The previous prime is 102609728813. The next prime is 102609728899. The reversal of 102609728882 is 288827906201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 288827906201 = 257 ⋅1123843993.

It can be written as a sum of positive squares in only one way, i.e., 57903278161 + 44706450721 = 240631^2 + 211439^2 .

It is a super-2 number, since 2×102609728882² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25652432219 + ... + 25652432222.

Almost surely, 2^102609728882 is an apocalyptic number.

102609728882 is a deficient number, since it is larger than the sum of its proper divisors (51304864444).

102609728882 is an equidigital number, since it uses as much as digits as its factorization.

102609728882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51304864443.

The product of its (nonzero) digits is 1548288, while the sum is 53.

The spelling of 102609728882 in words is "one hundred two billion, six hundred nine million, seven hundred twenty-eight thousand, eight hundred eighty-two".