28516304326678 has 48 divisors (see below), whose sum is σ = 50690549909664. Its totient is φ = 11993161501440.

The previous prime is 28516304326667. The next prime is 28516304326691. The reversal of 28516304326678 is 87662340361582.

It is a super-2 number, since 2×28516304326678² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (61).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2919850 + ... + 8096797.

It is an arithmetic number, because the mean of its divisors is an integer number (1056053123118).

Almost surely, 2^{28516304326678} is an apocalyptic number.

28516304326678 is a deficient number, since it is larger than the sum of its proper divisors (22174245582986).

28516304326678 is a wasteful number, since it uses less digits than its factorization.

28516304326678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11017157 (or 11017150 counting only the distinct ones).

The product of its (nonzero) digits is 69672960, while the sum is 61.

The spelling of 28516304326678 in words is "twenty-eight trillion, five hundred sixteen billion, three hundred four million, three hundred twenty-six thousand, six hundred seventy-eight".