61852885013 has 2 divisors, whose sum is σ = 61852885014. Its totient is φ = 61852885012.

The previous prime is 61852884959. The next prime is 61852885021. The reversal of 61852885013 is 31058825816.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 58535931364 + 3316953649 = 241942^2 + 57593^2 .

It is a cyclic number.

It is not a de Polignac number, because 61852885013 - 2¹⁶ = 61852819477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61852855013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30926442506 + 30926442507.

It is an arithmetic number, because the mean of its divisors is an integer number (30926442507).

Almost surely, 2^61852885013 is an apocalyptic number.

It is an amenable number.

61852885013 is a deficient number, since it is larger than the sum of its proper divisors (1).

61852885013 is an equidigital number, since it uses as much as digits as its factorization.

61852885013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 460800, while the sum is 47.

The spelling of 61852885013 in words is "sixty-one billion, eight hundred fifty-two million, eight hundred eighty-five thousand, thirteen".