4020991468082 has 8 divisors (see below), whose sum is σ = 6031496037996. Its totient is φ = 2010492788752.

The previous prime is 4020991468063. The next prime is 4020991468121. The reversal of 4020991468082 is 2808641990204.

It is a happy number.

It is a Cunningham number, because it is equal to 2005241²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 4020991468081 + 1 = 2005241^2 + 1^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1214648 + ... + 3085020.

Almost surely, 2^{4020991468082} is an apocalyptic number.

4020991468082 is a deficient number, since it is larger than the sum of its proper divisors (2010504569914).

4020991468082 is a wasteful number, since it uses less digits than its factorization.

4020991468082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2945292.

The product of its (nonzero) digits is 1990656, while the sum is 53.

The spelling of 4020991468082 in words is "four trillion, twenty billion, nine hundred ninety-one million, four hundred sixty-eight thousand, eighty-two".