28070796512 has 192 divisors, whose sum is σ = 63800291520. Its totient is φ = 12043468800.

The previous prime is 28070796497. The next prime is 28070796539. The reversal of 28070796512 is 21569707082.

It is a happy number.

It is a super-2 number, since 2×28070796512² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 70707098 + ... + 70707494.

It is an arithmetic number, because the mean of its divisors is an integer number (332293185).

Almost surely, 2^28070796512 is an apocalyptic number.

28070796512 is a gapful number since it is divisible by the number (22) 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 28070796512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31900145760).

28070796512 is an abundant number, since it is smaller than the sum of its proper divisors (35729495008).

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

28070796512 is a wasteful number, since it uses less digits than its factorization.

28070796512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605 (or 597 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 47.

The spelling of 28070796512 in words is "twenty-eight billion, seventy million, seven hundred ninety-six thousand, five hundred twelve".