28926712755 has 24 divisors (see below), whose sum is σ = 50181756768. Its totient is φ = 15414619776.

The previous prime is 28926712751. The next prime is 28926712819. The reversal of 28926712755 is 55721762982.

28926712755 is a `hidden beast` number, since 289 + 26 + 71 + 275 + 5 = 666.

It is not a de Polignac number, because 28926712755 - 2² = 28926712751 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (28926712751) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 215727 + ... + 323096.

It is an arithmetic number, because the mean of its divisors is an integer number (2090906532).

Almost surely, 2^28926712755 is an apocalyptic number.

28926712755 is a deficient number, since it is larger than the sum of its proper divisors (21255044013).

28926712755 is a wasteful number, since it uses less digits than its factorization.

28926712755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540027 (or 540024 counting only the distinct ones).

The product of its digits is 4233600, while the sum is 54.

The spelling of 28926712755 in words is "twenty-eight billion, nine hundred twenty-six million, seven hundred twelve thousand, seven hundred fifty-five".