61085378 has 16 divisors (see below), whose sum is σ = 96926976. Its totient is φ = 28812960.

The previous prime is 61085363. The next prime is 61085411. The reversal of 61085378 is 87358016.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5738 + ... + 12453.

It is an arithmetic number, because the mean of its divisors is an integer number (6057936).

Almost surely, 2^61085378 is an apocalyptic number.

61085378 is a deficient number, since it is larger than the sum of its proper divisors (35841598).

61085378 is a wasteful number, since it uses less digits than its factorization.

61085378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18289.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 61085378 is about 7815.7135310859. The cubic root of 61085378 is about 393.8332885707.

The spelling of 61085378 in words is "sixty-one million, eighty-five thousand, three hundred seventy-eight".