61820802192533 has 2 divisors, whose sum is σ = 61820802192534. Its totient is φ = 61820802192532.

The previous prime is 61820802192473. The next prime is 61820802192587. The reversal of 61820802192533 is 33529120802816.

It is a happy number.

61820802192533 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60661698027844 + 1159104164689 = 7788562^2 + 1076617^2 .

It is a cyclic number.

It is not a de Polignac number, because 61820802192533 - 2⁶ = 61820802192469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61820802192133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30910401096266 + 30910401096267.

It is an arithmetic number, because the mean of its divisors is an integer number (30910401096267).

Almost surely, 2^{61820802192533} is an apocalyptic number.

It is an amenable number.

61820802192533 is a deficient number, since it is larger than the sum of its proper divisors (1).

61820802192533 is an equidigital number, since it uses as much as digits as its factorization.

61820802192533 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1244160, while the sum is 50.

The spelling of 61820802192533 in words is "sixty-one trillion, eight hundred twenty billion, eight hundred two million, one hundred ninety-two thousand, five hundred thirty-three".