28746028887430 has 16 divisors (see below), whose sum is σ = 51747901742880. Its totient is φ = 11497289389312.

The previous prime is 28746028887419. The next prime is 28746028887473. The reversal of 28746028887430 is 3478882064782.

It is a super-2 number, since 2×28746028887430² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140163115 + ... + 140368054.

It is an arithmetic number, because the mean of its divisors is an integer number (3234243858930).

Almost surely, 2^{28746028887430} is an apocalyptic number.

28746028887430 is a deficient number, since it is larger than the sum of its proper divisors (23001872855450).

28746028887430 is a wasteful number, since it uses less digits than its factorization.

28746028887430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280541423.

The product of its (nonzero) digits is 231211008, while the sum is 67.

The spelling of 28746028887430 in words is "twenty-eight trillion, seven hundred forty-six billion, twenty-eight million, eight hundred eighty-seven thousand, four hundred thirty".