28619323488 has 96 divisors (see below), whose sum is σ = 95397765120. Its totient is φ = 8176947840.

The previous prime is 28619323463. The next prime is 28619323493. The reversal of 28619323488 is 88432391682.

28619323488 is a `hidden beast` number, since 286 + 19 + 3 + 2 + 348 + 8 = 666.

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

It is a super-2 number, since 2×28619323488² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

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, 2359968 + ... + 2372063.

It is an arithmetic number, because the mean of its divisors is an integer number (993726720).

Almost surely, 2^28619323488 is an apocalyptic number.

28619323488 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

28619323488 is an abundant number, since it is smaller than the sum of its proper divisors (66778441632).

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

28619323488 is a wasteful number, since it uses less digits than its factorization.

28619323488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4732057 (or 4732043 counting only the distinct ones).

The product of its digits is 3981312, while the sum is 54.

The spelling of 28619323488 in words is "twenty-eight billion, six hundred nineteen million, three hundred twenty-three thousand, four hundred eighty-eight".