28787153078 has 8 divisors (see below), whose sum is σ = 43625892072. Its totient is φ = 14245189056.

The previous prime is 28787153041. The next prime is 28787153113. The reversal of 28787153078 is 87035178782.

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

It is a congruent number.

It is an unprimeable number.

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, 74193500 + ... + 74193887.

It is an arithmetic number, because the mean of its divisors is an integer number (5453236509).

Almost surely, 2^28787153078 is an apocalyptic number.

28787153078 is a deficient number, since it is larger than the sum of its proper divisors (14838738994).

28787153078 is a wasteful number, since it uses less digits than its factorization.

28787153078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148387486.

The product of its (nonzero) digits is 5268480, while the sum is 56.

The spelling of 28787153078 in words is "twenty-eight billion, seven hundred eighty-seven million, one hundred fifty-three thousand, seventy-eight".