3215715878108 has 48 divisors (see below), whose sum is σ = 5775128948736. Its totient is φ = 1565822586240.

The previous prime is 3215715878107. The next prime is 3215715878189. The reversal of 3215715878108 is 8018785175123.

It is a happy number.

It is a super-3 number, since 3×3215715878108³ (a number of 38 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3215715878107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 252345185 + ... + 252357927.

It is an arithmetic number, because the mean of its divisors is an integer number (120315186432).

Almost surely, 2^{3215715878108} is an apocalyptic number.

It is an amenable number.

3215715878108 is a deficient number, since it is larger than the sum of its proper divisors (2559413070628).

3215715878108 is a wasteful number, since it uses less digits than its factorization.

3215715878108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15434 (or 15432 counting only the distinct ones).

The product of its (nonzero) digits is 3763200, while the sum is 56.

The spelling of 3215715878108 in words is "three trillion, two hundred fifteen billion, seven hundred fifteen million, eight hundred seventy-eight thousand, one hundred eight".