454639631568 has 80 divisors (see below), whose sum is σ = 1197284172480. Its totient is φ = 148607859712.

The previous prime is 454639631557. The next prime is 454639631587. The reversal of 454639631568 is 865136936454.

It is a congruent number.

It is an unprimeable number.

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, 4819963 + ... + 4913381.

It is an arithmetic number, because the mean of its divisors is an integer number (14966052156).

Almost surely, 2^454639631568 is an apocalyptic number.

454639631568 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 454639631568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (598642086240).

454639631568 is an abundant number, since it is smaller than the sum of its proper divisors (742644540912).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

454639631568 is a wasteful number, since it uses less digits than its factorization.

454639631568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95396 (or 95390 counting only the distinct ones).

The product of its digits is 55987200, while the sum is 60.

The spelling of 454639631568 in words is "four hundred fifty-four billion, six hundred thirty-nine million, six hundred thirty-one thousand, five hundred sixty-eight".