61803378 has 64 divisors (see below), whose sum is σ = 169048320. Its totient is φ = 16298496.

The previous prime is 61803361. The next prime is 61803383. The reversal of 61803378 is 87330816.

61803378 is a `hidden beast` number, since 618 + 0 + 3 + 37 + 8 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1375 + ... + 11202.

It is an arithmetic number, because the mean of its divisors is an integer number (2641380).

Almost surely, 2^61803378 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61803378, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84524160).

61803378 is an abundant number, since it is smaller than the sum of its proper divisors (107244942).

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

61803378 is a wasteful number, since it uses less digits than its factorization.

61803378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12608 (or 12602 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 61803378 is about 7861.5124499043. The cubic root of 61803378 is about 395.3703262010.

The spelling of 61803378 in words is "sixty-one million, eight hundred three thousand, three hundred seventy-eight".