2102416649 has 2 divisors, whose sum is σ = 2102416650. Its totient is φ = 2102416648.

The previous prime is 2102416619. The next prime is 2102416663. The reversal of 2102416649 is 9466142012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1890510400 + 211906249 = 43480^2 + 14557^2 .

It is a cyclic number.

It is not a de Polignac number, because 2102416649 - 2¹² = 2102412553 is a prime.

It is not a weakly prime, because it can be changed into another prime (2102416619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051208324 + 1051208325.

It is an arithmetic number, because the mean of its divisors is an integer number (1051208325).

Almost surely, 2^2102416649 is an apocalyptic number.

It is an amenable number.

2102416649 is a deficient number, since it is larger than the sum of its proper divisors (1).

2102416649 is an equidigital number, since it uses as much as digits as its factorization.

2102416649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 2102416649 is about 45852.1171703118. The cubic root of 2102416649 is about 1281.0702005432.

It can be divided in two parts, 21024 and 16649, that added together give a palindrome (37673).

The spelling of 2102416649 in words is "two billion, one hundred two million, four hundred sixteen thousand, six hundred forty-nine".