28767730348 has 12 divisors (see below), whose sum is σ = 57535460752. Its totient is φ = 12329027280.

The previous prime is 28767730337. The next prime is 28767730373. The reversal of 28767730348 is 84303776782.

28767730348 is an admirable number.

It is a super-2 number, since 2×28767730348² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 513709443 + ... + 513709498.

Almost surely, 2^28767730348 is an apocalyptic number.

28767730348 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

28767730348 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

28767730348 is a wasteful number, since it uses less digits than its factorization.

28767730348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1027418952 (or 1027418950 counting only the distinct ones).

The product of its (nonzero) digits is 9483264, while the sum is 55.

The spelling of 28767730348 in words is "twenty-eight billion, seven hundred sixty-seven million, seven hundred thirty thousand, three hundred forty-eight".