61500678 has 8 divisors (see below), whose sum is σ = 123001368. Its totient is φ = 20500224.

The previous prime is 61500671. The next prime is 61500721. The reversal of 61500678 is 87600516.

61500678 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

61500678 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61500671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5125051 + ... + 5125062.

It is an arithmetic number, because the mean of its divisors is an integer number (15375171).

Almost surely, 2^61500678 is an apocalyptic number.

61500678 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.

61500678 is a wasteful number, since it uses less digits than its factorization.

61500678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10250118.

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 61500678 is about 7842.2367982611. The cubic root of 61500678 is about 394.7237891674.

The spelling of 61500678 in words is "sixty-one million, five hundred thousand, six hundred seventy-eight".