42616312210649 has 2 divisors, whose sum is σ = 42616312210650. Its totient is φ = 42616312210648.

The previous prime is 42616312210607. The next prime is 42616312210679. The reversal of 42616312210649 is 94601221361624.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36822990558025 + 5793321652624 = 6068195^2 + 2406932^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42616312210649 is a prime.

It is a super-2 number, since 2×42616312210649² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (42616312210679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21308156105324 + 21308156105325.

It is an arithmetic number, because the mean of its divisors is an integer number (21308156105325).

Almost surely, 2^{42616312210649} is an apocalyptic number.

It is an amenable number.

42616312210649 is a deficient number, since it is larger than the sum of its proper divisors (1).

42616312210649 is an equidigital number, since it uses as much as digits as its factorization.

42616312210649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 746496, while the sum is 47.

The spelling of 42616312210649 in words is "forty-two trillion, six hundred sixteen billion, three hundred twelve million, two hundred ten thousand, six hundred forty-nine".