10219243649 has 2 divisors, whose sum is σ = 10219243650. Its totient is φ = 10219243648.

The previous prime is 10219243637. The next prime is 10219243673. The reversal of 10219243649 is 94634291201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5747914225 + 4471329424 = 75815^2 + 66868^2 .

It is a cyclic number.

It is not a de Polignac number, because 10219243649 - 2³² = 5924276353 is a prime.

It is not a weakly prime, because it can be changed into another prime (10219243679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5109621824 + 5109621825.

It is an arithmetic number, because the mean of its divisors is an integer number (5109621825).

Almost surely, 2^10219243649 is an apocalyptic number.

It is an amenable number.

10219243649 is a deficient number, since it is larger than the sum of its proper divisors (1).

10219243649 is an equidigital number, since it uses as much as digits as its factorization.

10219243649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 41.

The spelling of 10219243649 in words is "ten billion, two hundred nineteen million, two hundred forty-three thousand, six hundred forty-nine".