61678802082 has 8 divisors (see below), whose sum is σ = 123357604176. Its totient is φ = 20559600692.

The previous prime is 61678802033. The next prime is 61678802111. The reversal of 61678802082 is 28020887616.

It is a sphenic number, since it is the product of 3 distinct primes.

61678802082 is an admirable 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 3 ways as a sum of consecutive naturals, for example, 5139900168 + ... + 5139900179.

It is an arithmetic number, because the mean of its divisors is an integer number (15419700522).

Almost surely, 2^61678802082 is an apocalyptic number.

61678802082 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

61678802082 is a wasteful number, since it uses less digits than its factorization.

61678802082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10279800352.

The product of its (nonzero) digits is 516096, while the sum is 48.

The spelling of 61678802082 in words is "sixty-one billion, six hundred seventy-eight million, eight hundred two thousand, eighty-two".