61653145362269 has 2 divisors, whose sum is σ = 61653145362270. Its totient is φ = 61653145362268.

The previous prime is 61653145362233. The next prime is 61653145362349. The reversal of 61653145362269 is 96226354135616.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53731099022500 + 7922046339769 = 7330150^2 + 2814613^2 .

It is a cyclic number.

It is not a de Polignac number, because 61653145362269 - 2⁴⁴ = 44060959317853 is a prime.

It is a super-3 number, since 3×61653145362269³ (a number of 42 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61653145362209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30826572681134 + 30826572681135.

It is an arithmetic number, because the mean of its divisors is an integer number (30826572681135).

Almost surely, 2^{61653145362269} is an apocalyptic number.

It is an amenable number.

61653145362269 is a deficient number, since it is larger than the sum of its proper divisors (1).

61653145362269 is an equidigital number, since it uses as much as digits as its factorization.

61653145362269 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41990400, while the sum is 59.

The spelling of 61653145362269 in words is "sixty-one trillion, six hundred fifty-three billion, one hundred forty-five million, three hundred sixty-two thousand, two hundred sixty-nine".