28406652522 has 8 divisors (see below), whose sum is σ = 56813305056. Its totient is φ = 9468884172.

The previous prime is 28406652509. The next prime is 28406652523. The reversal of 28406652522 is 22525660482.

It is a sphenic number, since it is the product of 3 distinct primes.

28406652522 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (28406652523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2367221038 + ... + 2367221049.

It is an arithmetic number, because the mean of its divisors is an integer number (7101663132).

Almost surely, 2^28406652522 is an apocalyptic number.

28406652522 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

28406652522 is a wasteful number, since it uses less digits than its factorization.

28406652522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4734442092.

The product of its (nonzero) digits is 460800, while the sum is 42.

The spelling of 28406652522 in words is "twenty-eight billion, four hundred six million, six hundred fifty-two thousand, five hundred twenty-two".