61852886013 has 4 divisors (see below), whose sum is σ = 82470514688. Its totient is φ = 41235257340.

The previous prime is 61852885981. The next prime is 61852886027. The reversal of 61852886013 is 31068825816.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 61852886013 - 2⁵ = 61852885981 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61852885013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10308814333 + ... + 10308814338.

It is an arithmetic number, because the mean of its divisors is an integer number (20617628672).

Almost surely, 2^61852886013 is an apocalyptic number.

It is an amenable number.

61852886013 is a deficient number, since it is larger than the sum of its proper divisors (20617628675).

61852886013 is a wasteful number, since it uses less digits than its factorization.

61852886013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20617628674.

The product of its (nonzero) digits is 552960, while the sum is 48.

The spelling of 61852886013 in words is "sixty-one billion, eight hundred fifty-two million, eight hundred eighty-six thousand, thirteen".