28867650776 has 32 divisors (see below), whose sum is σ = 54603537600. Its totient is φ = 14307179040.

The previous prime is 28867650769. The next prime is 28867650781. The reversal of 28867650776 is 67705676882.

It is a super-2 number, since 2×28867650776² (a number of 22 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 (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 465011 + ... + 523421.

It is an arithmetic number, because the mean of its divisors is an integer number (1706360550).

Almost surely, 2^28867650776 is an apocalyptic number.

It is an amenable number.

28867650776 is a deficient number, since it is larger than the sum of its proper divisors (25735886824).

28867650776 is a wasteful number, since it uses less digits than its factorization.

28867650776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58959 (or 58955 counting only the distinct ones).

The product of its (nonzero) digits is 47416320, while the sum is 62.

The spelling of 28867650776 in words is "twenty-eight billion, eight hundred sixty-seven million, six hundred fifty thousand, seven hundred seventy-six".