61422065635639 has 2 divisors, whose sum is σ = 61422065635640. Its totient is φ = 61422065635638.

The previous prime is 61422065635507. The next prime is 61422065635649. The reversal of 61422065635639 is 93653656022416.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61422065635639 - 2¹⁵ = 61422065602871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61422065635649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30711032817819 + 30711032817820.

It is an arithmetic number, because the mean of its divisors is an integer number (30711032817820).

Almost surely, 2^{61422065635639} is an apocalyptic number.

61422065635639 is a deficient number, since it is larger than the sum of its proper divisors (1).

61422065635639 is an equidigital number, since it uses as much as digits as its factorization.

61422065635639 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41990400, while the sum is 58.

The spelling of 61422065635639 in words is "sixty-one trillion, four hundred twenty-two billion, sixty-five million, six hundred thirty-five thousand, six hundred thirty-nine".