28764135651357 has 6 divisors (see below), whose sum is σ = 41548195940862. Its totient is φ = 19176090434232.

The previous prime is 28764135651337. The next prime is 28764135651403. The reversal of 28764135651357 is 75315653146782.

28764135651357 is a `hidden beast` number, since 2 + 8 + 7 + 6 + 4 + 1 + 3 + 565 + 13 + 57 = 666.

It can be written as a sum of positive squares in only one way, i.e., 26799972643161 + 1964163008196 = 5176869^2 + 1401486^2 .

It is not a de Polignac number, because 28764135651357 - 2¹⁹ = 28764135127069 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28764135651294 and 28764135651303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28764135651337) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1598007536178 + ... + 1598007536195.

It is an arithmetic number, because the mean of its divisors is an integer number (6924699323477).

Almost surely, 2^{28764135651357} is an apocalyptic number.

It is an amenable number.

28764135651357 is a deficient number, since it is larger than the sum of its proper divisors (12784060289505).

28764135651357 is a wasteful number, since it uses less digits than its factorization.

28764135651357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3196015072379 (or 3196015072376 counting only the distinct ones).

The product of its digits is 127008000, while the sum is 63.

The spelling of 28764135651357 in words is "twenty-eight trillion, seven hundred sixty-four billion, one hundred thirty-five million, six hundred fifty-one thousand, three hundred fifty-seven".