100619087749 has 2 divisors, whose sum is σ = 100619087750. Its totient is φ = 100619087748.

The previous prime is 100619087747. The next prime is 100619087791. The reversal of 100619087749 is 947780916001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86387790724 + 14231297025 = 293918^2 + 119295^2 .

It is a cyclic number.

It is not a de Polignac number, because 100619087749 - 2¹ = 100619087747 is a prime.

Together with 100619087747, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 100619087696 and 100619087705.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100619087747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50309543874 + 50309543875.

It is an arithmetic number, because the mean of its divisors is an integer number (50309543875).

Almost surely, 2^100619087749 is an apocalyptic number.

It is an amenable number.

100619087749 is a deficient number, since it is larger than the sum of its proper divisors (1).

100619087749 is an equidigital number, since it uses as much as digits as its factorization.

100619087749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 762048, while the sum is 52.

The spelling of 100619087749 in words is "one hundred billion, six hundred nineteen million, eighty-seven thousand, seven hundred forty-nine".