28733387651 has 2 divisors, whose sum is σ = 28733387652. Its totient is φ = 28733387650.

The previous prime is 28733387609. The next prime is 28733387699. The reversal of 28733387651 is 15678333782.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28733387651 - 2¹⁴ = 28733371267 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28733387593 and 28733387602.

It is not a weakly prime, because it can be changed into another prime (28733387351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14366693825 + 14366693826.

It is an arithmetic number, because the mean of its divisors is an integer number (14366693826).

Almost surely, 2^28733387651 is an apocalyptic number.

28733387651 is a deficient number, since it is larger than the sum of its proper divisors (1).

28733387651 is an equidigital number, since it uses as much as digits as its factorization.

28733387651 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5080320, while the sum is 53.

The spelling of 28733387651 in words is "twenty-eight billion, seven hundred thirty-three million, three hundred eighty-seven thousand, six hundred fifty-one".