4021999999963 has 4 divisors (see below), whose sum is σ = 4387636363608. Its totient is φ = 3656363636320.

The previous prime is 4021999999951. The next prime is 4021999999999. The reversal of 4021999999963 is 3699999991204.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4021999999963 - 2¹³ = 4021999991771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4021999991963) 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, 182818181806 + ... + 182818181827.

It is an arithmetic number, because the mean of its divisors is an integer number (1096909090902).

Almost surely, 2^{4021999999963} is an apocalyptic number.

4021999999963 is a deficient number, since it is larger than the sum of its proper divisors (365636363645).

4021999999963 is a wasteful number, since it uses less digits than its factorization.

4021999999963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365636363644.

The product of its (nonzero) digits is 688747536, while the sum is 79.

The spelling of 4021999999963 in words is "four trillion, twenty-one billion, nine hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred sixty-three".