61078064 has 40 divisors (see below), whose sum is σ = 124143840. Its totient is φ = 29055488.

The previous prime is 61078063. The next prime is 61078067. The reversal of 61078064 is 46087016.

It is a self number, because there is not a number n which added to its sum of digits gives 61078064.

It is not an unprimeable number, because it can be changed into a prime (61078063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98684 + ... + 99300.

It is an arithmetic number, because the mean of its divisors is an integer number (3103596).

Almost surely, 2^61078064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61078064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62071920).

61078064 is an abundant number, since it is smaller than the sum of its proper divisors (63065776).

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

61078064 is a wasteful number, since it uses less digits than its factorization.

61078064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 917 (or 911 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 61078064 is about 7815.2456135428. The cubic root of 61078064 is about 393.8175695244.

The spelling of 61078064 in words is "sixty-one million, seventy-eight thousand, sixty-four".