102604572691 has 2 divisors, whose sum is σ = 102604572692. Its totient is φ = 102604572690.

The previous prime is 102604572647. The next prime is 102604572743. The reversal of 102604572691 is 196275406201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102604572691 - 2¹⁵ = 102604539923 is a prime.

It is not a weakly prime, because it can be changed into another prime (102604572601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51302286345 + 51302286346.

It is an arithmetic number, because the mean of its divisors is an integer number (51302286346).

Almost surely, 2^102604572691 is an apocalyptic number.

102604572691 is a deficient number, since it is larger than the sum of its proper divisors (1).

102604572691 is an equidigital number, since it uses as much as digits as its factorization.

102604572691 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 43.

Adding to 102604572691 its reverse (196275406201), we get a palindrome (298879978892).

The spelling of 102604572691 in words is "one hundred two billion, six hundred four million, five hundred seventy-two thousand, six hundred ninety-one".