61179102012 has 48 divisors (see below), whose sum is σ = 163218488832. Its totient is φ = 17471791680.

The previous prime is 61179102007. The next prime is 61179102029. The reversal of 61179102012 is 21020197116.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21337 + ... + 350447.

It is an arithmetic number, because the mean of its divisors is an integer number (3400385184).

Almost surely, 2^61179102012 is an apocalyptic number.

It is an amenable number.

61179102012 is an abundant number, since it is smaller than the sum of its proper divisors (102039386820).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61179102012 is a wasteful number, since it uses less digits than its factorization.

61179102012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331338 (or 331336 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 30.

Adding to 61179102012 its reverse (21020197116), we get a palindrome (82199299128).

The spelling of 61179102012 in words is "sixty-one billion, one hundred seventy-nine million, one hundred two thousand, twelve".