4407191142021 has 12 divisors (see below), whose sum is σ = 6386412034080. Its totient is φ = 2928680071080.

The previous prime is 4407191142007. The next prime is 4407191142031. The reversal of 4407191142021 is 1202411917044.

It is a happy number.

4407191142021 is a `hidden beast` number, since 4 + 40 + 7 + 191 + 1 + 420 + 2 + 1 = 666.

It is not a de Polignac number, because 4407191142021 - 2¹¹ = 4407191139973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4407191142031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 787276791 + ... + 787282388.

It is an arithmetic number, because the mean of its divisors is an integer number (532201002840).

Almost surely, 2^{4407191142021} is an apocalyptic number.

It is an amenable number.

4407191142021 is a deficient number, since it is larger than the sum of its proper divisors (1979220892059).

4407191142021 is a wasteful number, since it uses less digits than its factorization.

4407191142021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1574559496 (or 1574559493 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The spelling of 4407191142021 in words is "four trillion, four hundred seven billion, one hundred ninety-one million, one hundred forty-two thousand, twenty-one".