61882784149 has 2 divisors, whose sum is σ = 61882784150. Its totient is φ = 61882784148.

The previous prime is 61882784143. The next prime is 61882784221. The reversal of 61882784149 is 94148728816.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56986283524 + 4896500625 = 238718^2 + 69975^2 .

It is a cyclic number.

It is not a de Polignac number, because 61882784149 - 2³³ = 53292849557 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61882784093 and 61882784102.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61882784143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30941392074 + 30941392075.

It is an arithmetic number, because the mean of its divisors is an integer number (30941392075).

Almost surely, 2^61882784149 is an apocalyptic number.

It is an amenable number.

61882784149 is a deficient number, since it is larger than the sum of its proper divisors (1).

61882784149 is an equidigital number, since it uses as much as digits as its factorization.

61882784149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6193152, while the sum is 58.

The spelling of 61882784149 in words is "sixty-one billion, eight hundred eighty-two million, seven hundred eighty-four thousand, one hundred forty-nine".