61068870 has 64 divisors (see below), whose sum is σ = 167279040. Its totient is φ = 15842304.

The previous prime is 61068823. The next prime is 61068883. The reversal of 61068870 is 7886016.

It is a congruent number.

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, 6934 + ... + 13046.

It is an arithmetic number, because the mean of its divisors is an integer number (2613735).

Almost surely, 2^61068870 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61068870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83639520).

61068870 is an abundant number, since it is smaller than the sum of its proper divisors (106210170).

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

61068870 is a wasteful number, since it uses less digits than its factorization.

61068870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6166 (or 6160 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 61068870 is about 7814.6573821250. The cubic root of 61068870 is about 393.7978082539.

The spelling of 61068870 in words is "sixty-one million, sixty-eight thousand, eight hundred seventy".