61283852916469 has 2 divisors, whose sum is σ = 61283852916470. Its totient is φ = 61283852916468.

The previous prime is 61283852916467. The next prime is 61283852916541. The reversal of 61283852916469 is 96461925838216.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35648243478225 + 25635609438244 = 5970615^2 + 5063162^2 .

It is a cyclic number.

It is not a de Polignac number, because 61283852916469 - 2¹ = 61283852916467 is a prime.

It is a super-2 number, since 2×61283852916469² (a number of 28 digits) contains 22 as substring.

Together with 61283852916467, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 61283852916398 and 61283852916407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61283852916467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30641926458234 + 30641926458235.

It is an arithmetic number, because the mean of its divisors is an integer number (30641926458235).

Almost surely, 2^{61283852916469} is an apocalyptic number.

It is an amenable number.

61283852916469 is a deficient number, since it is larger than the sum of its proper divisors (1).

61283852916469 is an equidigital number, since it uses as much as digits as its factorization.

61283852916469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 268738560, while the sum is 70.

The spelling of 61283852916469 in words is "sixty-one trillion, two hundred eighty-three billion, eight hundred fifty-two million, nine hundred sixteen thousand, four hundred sixty-nine".