106978752385 has 8 divisors (see below), whose sum is σ = 128779471656. Its totient is φ = 85313022720.

The previous prime is 106978752329. The next prime is 106978752401. The reversal of 106978752385 is 583257879601.

It can be written as a sum of positive squares in 4 ways, for example, as 6202980081 + 100775772304 = 78759^2 + 317452^2 .

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

It is not a de Polignac number, because 106978752385 - 2¹¹ = 106978750337 is a prime.

It is a super-2 number, since 2×106978752385² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33745656 + ... + 33748825.

It is an arithmetic number, because the mean of its divisors is an integer number (16097433957).

Almost surely, 2^106978752385 is an apocalyptic number.

It is an amenable number.

106978752385 is a deficient number, since it is larger than the sum of its proper divisors (21800719271).

106978752385 is an equidigital number, since it uses as much as digits as its factorization.

106978752385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67494803.

The product of its (nonzero) digits is 25401600, while the sum is 61.

The spelling of 106978752385 in words is "one hundred six billion, nine hundred seventy-eight million, seven hundred fifty-two thousand, three hundred eighty-five".