4226458851981 has 24 divisors (see below), whose sum is σ = 6227287447680. Its totient is φ = 2761666479936.

The previous prime is 4226458851971. The next prime is 4226458852037. The reversal of 4226458851981 is 1891588546224.

4226458851981 is a `hidden beast` number, since 4 + 2 + 2 + 64 + 58 + 8 + 519 + 8 + 1 = 666.

It is not a de Polignac number, because 4226458851981 - 2¹¹ = 4226458849933 is a prime.

It is a super-2 number, since 2×4226458851981² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4226458851931) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21597435 + ... + 21792248.

It is an arithmetic number, because the mean of its divisors is an integer number (259470310320).

Almost surely, 2^{4226458851981} is an apocalyptic number.

It is an amenable number.

4226458851981 is a deficient number, since it is larger than the sum of its proper divisors (2000828595699).

4226458851981 is a wasteful number, since it uses less digits than its factorization.

4226458851981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43389905 (or 43389902 counting only the distinct ones).

The product of its digits is 44236800, while the sum is 63.

The spelling of 4226458851981 in words is "four trillion, two hundred twenty-six billion, four hundred fifty-eight million, eight hundred fifty-one thousand, nine hundred eighty-one".