61741818 has 64 divisors (see below), whose sum is σ = 142732800. Its totient is φ = 19768320.

The previous prime is 61741781. The next prime is 61741831. The reversal of 61741818 is 81814716.

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, 174730 + ... + 175082.

It is an arithmetic number, because the mean of its divisors is an integer number (2230200).

Almost surely, 2^61741818 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61741818, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71366400).

61741818 is an abundant number, since it is smaller than the sum of its proper divisors (80990982).

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

61741818 is a wasteful number, since it uses less digits than its factorization.

61741818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484 (or 478 counting only the distinct ones).

The product of its digits is 10752, while the sum is 36.

The square root of 61741818 is about 7857.5961973112. The cubic root of 61741818 is about 395.2390114650.

The spelling of 61741818 in words is "sixty-one million, seven hundred forty-one thousand, eight hundred eighteen".