2454222421891 has 2 divisors, whose sum is σ = 2454222421892. Its totient is φ = 2454222421890.

The previous prime is 2454222421883. The next prime is 2454222421897. The reversal of 2454222421891 is 1981242224542.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2454222421891 - 2³ = 2454222421883 is a prime.

It is a super-2 number, since 2×2454222421891² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2454222421897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1227111210945 + 1227111210946.

It is an arithmetic number, because the mean of its divisors is an integer number (1227111210946).

Almost surely, 2^{2454222421891} is an apocalyptic number.

2454222421891 is a deficient number, since it is larger than the sum of its proper divisors (1).

2454222421891 is an equidigital number, since it uses as much as digits as its factorization.

2454222421891 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 737280, while the sum is 46.

The spelling of 2454222421891 in words is "two trillion, four hundred fifty-four billion, two hundred twenty-two million, four hundred twenty-one thousand, eight hundred ninety-one".