28977476216 has 32 divisors (see below), whose sum is σ = 58899741600. Its totient is φ = 13285641600.

The previous prime is 28977476201. The next prime is 28977476237. The reversal of 28977476216 is 61267477982.

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 7 ways as a sum of consecutive naturals, for example, 906911 + ... + 938318.

It is an arithmetic number, because the mean of its divisors is an integer number (1840616925).

Almost surely, 2^28977476216 is an apocalyptic number.

28977476216 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

28977476216 is an abundant number, since it is smaller than the sum of its proper divisors (29922265384).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28977476216 is a wasteful number, since it uses less digits than its factorization.

28977476216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1845399 (or 1845395 counting only the distinct ones).

The product of its digits is 14224896, while the sum is 59.

The spelling of 28977476216 in words is "twenty-eight billion, nine hundred seventy-seven million, four hundred seventy-six thousand, two hundred sixteen".