102728260651 has 2 divisors, whose sum is σ = 102728260652. Its totient is φ = 102728260650.

The previous prime is 102728260643. The next prime is 102728260711. The reversal of 102728260651 is 156062827201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102728260651 - 2³ = 102728260643 is a prime.

It is not a weakly prime, because it can be changed into another prime (102728260451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51364130325 + 51364130326.

It is an arithmetic number, because the mean of its divisors is an integer number (51364130326).

Almost surely, 2^102728260651 is an apocalyptic number.

102728260651 is a deficient number, since it is larger than the sum of its proper divisors (1).

102728260651 is an equidigital number, since it uses as much as digits as its factorization.

102728260651 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80640, while the sum is 40.

The spelling of 102728260651 in words is "one hundred two billion, seven hundred twenty-eight million, two hundred sixty thousand, six hundred fifty-one".