61067796678 has 96 divisors (see below), whose sum is σ = 168537507840. Its totient is φ = 15557287680.

The previous prime is 61067796641. The next prime is 61067796679. The reversal of 61067796678 is 87669776016.

61067796678 is a `hidden beast` number, since 610 + 6 + 7 + 7 + 9 + 6 + 6 + 7 + 8 = 666.

It is a super-2 number, since 2×61067796678² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61067796679) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 709558 + ... + 790953.

It is an arithmetic number, because the mean of its divisors is an integer number (1755599040).

Almost surely, 2^61067796678 is an apocalyptic number.

61067796678 is an abundant number, since it is smaller than the sum of its proper divisors (107469711162).

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

61067796678 is a wasteful number, since it uses less digits than its factorization.

61067796678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1500562 (or 1500559 counting only the distinct ones).

The product of its (nonzero) digits is 32006016, while the sum is 63.

The spelling of 61067796678 in words is "sixty-one billion, sixty-seven million, seven hundred ninety-six thousand, six hundred seventy-eight".