8123552280 has 48 divisors (see below), whose sum is σ = 26401546080. Its totient is φ = 2166280512.

The previous prime is 8123552257. The next prime is 8123552291. The reversal of 8123552280 is 822553218.

8123552280 is a `hidden beast` number, since 8 + 1 + 23 + 552 + 2 + 80 = 666.

It is a super-3 number, since 3×8123552280³ (a number of 31 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11282352 + ... + 11283071.

It is an arithmetic number, because the mean of its divisors is an integer number (550032210).

Almost surely, 2^8123552280 is an apocalyptic number.

It is an amenable number.

8123552280 is an abundant number, since it is smaller than the sum of its proper divisors (18277993800).

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

8123552280 is a wasteful number, since it uses less digits than its factorization.

8123552280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22565440 (or 22565433 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The square root of 8123552280 is about 90130.7510231663. The cubic root of 8123552280 is about 2010.2434694309.

The spelling of 8123552280 in words is "eight billion, one hundred twenty-three million, five hundred fifty-two thousand, two hundred eighty".