61368983471 has 2 divisors, whose sum is σ = 61368983472. Its totient is φ = 61368983470.

The previous prime is 61368983413. The next prime is 61368983477. The reversal of 61368983471 is 17438986316.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61368983471 - 2¹⁰ = 61368982447 is a prime.

It is a super-3 number, since 3×61368983471³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61368983477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30684491735 + 30684491736.

It is an arithmetic number, because the mean of its divisors is an integer number (30684491736).

Almost surely, 2^61368983471 is an apocalyptic number.

61368983471 is a deficient number, since it is larger than the sum of its proper divisors (1).

61368983471 is an equidigital number, since it uses as much as digits as its factorization.

61368983471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5225472, while the sum is 56.

The spelling of 61368983471 in words is "sixty-one billion, three hundred sixty-eight million, nine hundred eighty-three thousand, four hundred seventy-one".