4215979972 has 12 divisors (see below), whose sum is σ = 7405394220. Its totient is φ = 2100153056.

The previous prime is 4215979931. The next prime is 4215979979. The reversal of 4215979972 is 2799795124.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1370184256 + 2845795716 = 37016^2 + 53346^2 .

It is not an unprimeable number, because it can be changed into a prime (4215979979) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1958023 + ... + 1960174.

It is an arithmetic number, because the mean of its divisors is an integer number (617116185).

Almost surely, 2^4215979972 is an apocalyptic number.

It is an amenable number.

4215979972 is a deficient number, since it is larger than the sum of its proper divisors (3189414248).

4215979972 is a wasteful number, since it uses less digits than its factorization.

4215979972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3918470 (or 3918468 counting only the distinct ones).

The product of its digits is 2857680, while the sum is 55.

The square root of 4215979972 is about 64930.5780969183. The cubic root of 4215979972 is about 1615.4722900541.

The spelling of 4215979972 in words is "four billion, two hundred fifteen million, nine hundred seventy-nine thousand, nine hundred seventy-two".