454223772565 has 16 divisors (see below), whose sum is σ = 577193366592. Its totient is φ = 341967049984.

The previous prime is 454223772491. The next prime is 454223772637. The reversal of 454223772565 is 565277322454.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 454223772565 - 2¹⁹ = 454223248277 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 522462 + ... + 1086928.

It is an arithmetic number, because the mean of its divisors is an integer number (36074585412).

Almost surely, 2^454223772565 is an apocalyptic number.

It is an amenable number.

454223772565 is a deficient number, since it is larger than the sum of its proper divisors (122969594027).

454223772565 is a wasteful number, since it uses less digits than its factorization.

454223772565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573956.

The product of its digits is 14112000, while the sum is 52.

The spelling of 454223772565 in words is "four hundred fifty-four billion, two hundred twenty-three million, seven hundred seventy-two thousand, five hundred sixty-five".