28077146080 has 24 divisors (see below), whose sum is σ = 66332257992. Its totient is φ = 11230858368.

The previous prime is 28077146011. The next prime is 28077146099. The reversal of 28077146080 is 8064177082.

It is a super-2 number, since 2×28077146080² (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 3 ways as a sum of consecutive naturals, for example, 87740922 + ... + 87741241.

It is an arithmetic number, because the mean of its divisors is an integer number (2763844083).

Almost surely, 2^28077146080 is an apocalyptic number.

28077146080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28077146080 is an abundant number, since it is smaller than the sum of its proper divisors (38255111912).

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

28077146080 is a wasteful number, since it uses less digits than its factorization.

28077146080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175482178 (or 175482170 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 43.

The spelling of 28077146080 in words is "twenty-eight billion, seventy-seven million, one hundred forty-six thousand, eighty".