4071967720 has 32 divisors (see below), whose sum is σ = 9477858600. Its totient is φ = 1572621568.

The previous prime is 4071967693. The next prime is 4071967723. The reversal of 4071967720 is 277691704.

It can be written as a sum of positive squares in 4 ways, for example, as 2556111364 + 1515856356 = 50558^2 + 38934^2 .

It is a super-2 number, since 2×4071967720² = 33161842225443996800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4071967723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1753999 + ... + 1756318.

Almost surely, 2^4071967720 is an apocalyptic number.

4071967720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4071967720 is an abundant number, since it is smaller than the sum of its proper divisors (5405890880).

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

4071967720 is a wasteful number, since it uses less digits than its factorization.

4071967720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3510357 (or 3510353 counting only the distinct ones).

The product of its (nonzero) digits is 148176, while the sum is 43.

The square root of 4071967720 is about 63811.9716040807. The cubic root of 4071967720 is about 1596.8646569030.

The spelling of 4071967720 in words is "four billion, seventy-one million, nine hundred sixty-seven thousand, seven hundred twenty".