61686834832412 has 24 divisors (see below), whose sum is σ = 110616613792272. Its totient is φ = 30082519030400.

The previous prime is 61686834832387. The next prime is 61686834832457. The reversal of 61686834832412 is 21423843868616.

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 7 ways as a sum of consecutive naturals, for example, 53300183 + ... + 54445230.

It is an arithmetic number, because the mean of its divisors is an integer number (4609025574678).

Almost surely, 2^{61686834832412} is an apocalyptic number.

It is an amenable number.

61686834832412 is a deficient number, since it is larger than the sum of its proper divisors (48929778959860).

61686834832412 is a wasteful number, since it uses less digits than its factorization.

61686834832412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107748949 (or 107748947 counting only the distinct ones).

The product of its digits is 63700992, while the sum is 62.

The spelling of 61686834832412 in words is "sixty-one trillion, six hundred eighty-six billion, eight hundred thirty-four million, eight hundred thirty-two thousand, four hundred twelve".