61246112261 has 4 divisors (see below), whose sum is σ = 61984017312. Its totient is φ = 60508207212.

The previous prime is 61246112203. The next prime is 61246112269. The reversal of 61246112261 is 16221164216.

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 a cyclic number.

It is not a de Polignac number, because 61246112261 - 2¹⁰ = 61246111237 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 (61246112269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 368952401 + ... + 368952566.

It is an arithmetic number, because the mean of its divisors is an integer number (15496004328).

Almost surely, 2^61246112261 is an apocalyptic number.

It is an amenable number.

61246112261 is a deficient number, since it is larger than the sum of its proper divisors (737905051).

61246112261 is an equidigital number, since it uses as much as digits as its factorization.

61246112261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 737905050.

The product of its digits is 6912, while the sum is 32.

Adding to 61246112261 its reverse (16221164216), we get a palindrome (77467276477).

The spelling of 61246112261 in words is "sixty-one billion, two hundred forty-six million, one hundred twelve thousand, two hundred sixty-one".