28409290036 has 24 divisors (see below), whose sum is σ = 52778234880. Its totient is φ = 13334159232.

The previous prime is 28409290031. The next prime is 28409290037. The reversal of 28409290036 is 63009290482.

It is a junction number, because it is equal to n+sod(n) for n = 28409289974 and 28409290001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28409290031) 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 7 ways as a sum of consecutive naturals, for example, 519366 + ... + 571453.

It is an arithmetic number, because the mean of its divisors is an integer number (2199093120).

Almost surely, 2^28409290036 is an apocalyptic number.

It is an amenable number.

28409290036 is a deficient number, since it is larger than the sum of its proper divisors (24368944844).

28409290036 is a wasteful number, since it uses less digits than its factorization.

28409290036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1091223 (or 1091221 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 43.

The spelling of 28409290036 in words is "twenty-eight billion, four hundred nine million, two hundred ninety thousand, thirty-six".