61112901239 has 16 divisors (see below), whose sum is σ = 66058675200. Its totient is φ = 56202478176.

The previous prime is 61112901191. The next prime is 61112901257. The reversal of 61112901239 is 93210921116.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-61112901239 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61112901199 and 61112901208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61112901439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4133342 + ... + 4148100.

It is an arithmetic number, because the mean of its divisors is an integer number (4128667200).

Almost surely, 2^61112901239 is an apocalyptic number.

61112901239 is a deficient number, since it is larger than the sum of its proper divisors (4945773961).

61112901239 is a wasteful number, since it uses less digits than its factorization.

61112901239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15934.

The product of its (nonzero) digits is 5832, while the sum is 35.

The spelling of 61112901239 in words is "sixty-one billion, one hundred twelve million, nine hundred one thousand, two hundred thirty-nine".