104899503509 has 2 divisors, whose sum is σ = 104899503510. Its totient is φ = 104899503508.

The previous prime is 104899503497. The next prime is 104899503521. The reversal of 104899503509 is 905305998401.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (104899503497) and next prime (104899503521).

It can be written as a sum of positive squares in only one way, i.e., 104472461284 + 427042225 = 323222^2 + 20665^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-104899503509 is a prime.

It is a super-2 number, since 2×104899503509² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104899500509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52449751754 + 52449751755.

It is an arithmetic number, because the mean of its divisors is an integer number (52449751755).

Almost surely, 2^104899503509 is an apocalyptic number.

It is an amenable number.

104899503509 is a deficient number, since it is larger than the sum of its proper divisors (1).

104899503509 is an equidigital number, since it uses as much as digits as its factorization.

104899503509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1749600, while the sum is 53.

The spelling of 104899503509 in words is "one hundred four billion, eight hundred ninety-nine million, five hundred three thousand, five hundred nine".