3215715742120 has 48 divisors (see below), whose sum is σ = 8416643758740. Its totient is φ = 1102531110912.

The previous prime is 3215715742097. The next prime is 3215715742133. The reversal of 3215715742120 is 212475175123.

It is a happy number.

3215715742120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2874713468004 + 341002274116 = 1695498^2 + 583954^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 820333689 + ... + 820337608.

Almost surely, 2^{3215715742120} is an apocalyptic number.

It is an amenable number.

3215715742120 is an abundant number, since it is smaller than the sum of its proper divisors (5200928016620).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3215715742120 is a wasteful number, since it uses less digits than its factorization.

3215715742120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1640671322 (or 1640671311 counting only the distinct ones).

The product of its (nonzero) digits is 117600, while the sum is 40.

The spelling of 3215715742120 in words is "three trillion, two hundred fifteen billion, seven hundred fifteen million, seven hundred forty-two thousand, one hundred twenty".