1454220643641 has 16 divisors (see below), whose sum is σ = 1952988139200. Its totient is φ = 962467345728.

The previous prime is 1454220643637. The next prime is 1454220643669. The reversal of 1454220643641 is 1463460224541.

It is not a de Polignac number, because 1454220643641 - 2² = 1454220643637 is a prime.

It is a super-2 number, since 2×1454220643641² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1454220643593 and 1454220643602.

It is not an unprimeable number, because it can be changed into a prime (1454220643741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13619835 + ... + 13726191.

It is an arithmetic number, because the mean of its divisors is an integer number (122061758700).

Almost surely, 2^{1454220643641} is an apocalyptic number.

It is an amenable number.

1454220643641 is a deficient number, since it is larger than the sum of its proper divisors (498767495559).

1454220643641 is a wasteful number, since it uses less digits than its factorization.

1454220643641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139288.

The product of its (nonzero) digits is 552960, while the sum is 42.

The spelling of 1454220643641 in words is "one trillion, four hundred fifty-four billion, two hundred twenty million, six hundred forty-three thousand, six hundred forty-one".