28455496320 has 64 divisors (see below), whose sum is σ = 90701900640. Its totient is φ = 7588131840.

The previous prime is 28455496271. The next prime is 28455496327. The reversal of 28455496320 is 2369455482.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 28455496320.

It is not an unprimeable number, because it can be changed into a prime (28455496327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7408366 + ... + 7412205.

Almost surely, 2^28455496320 is an apocalyptic number.

28455496320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28455496320 is an abundant number, since it is smaller than the sum of its proper divisors (62246404320).

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

28455496320 is a wasteful number, since it uses less digits than its factorization.

28455496320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14820593 (or 14820581 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 48.

The spelling of 28455496320 in words is "twenty-eight billion, four hundred fifty-five million, four hundred ninety-six thousand, three hundred twenty".