28954501920 has 96 divisors (see below), whose sum is σ = 101340771840. Its totient is φ = 7721199360.

The previous prime is 28954501913. The next prime is 28954501967. The reversal of 28954501920 is 2910545982.

It is a happy number.

28954501920 is a `hidden beast` number, since 2 + 8 + 9 + 5 + 450 + 192 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3346896 + ... + 3355535.

It is an arithmetic number, because the mean of its divisors is an integer number (1055633040).

Almost surely, 2^28954501920 is an apocalyptic number.

28954501920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28954501920 is an abundant number, since it is smaller than the sum of its proper divisors (72386269920).

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

28954501920 is a wasteful number, since it uses less digits than its factorization.

28954501920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6702455 (or 6702441 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 45.

The spelling of 28954501920 in words is "twenty-eight billion, nine hundred fifty-four million, five hundred one thousand, nine hundred twenty".