61798568 has 48 divisors (see below), whose sum is σ = 128509920. Its totient is φ = 27832896.

The previous prime is 61798549. The next prime is 61798571. The reversal of 61798568 is 86589716.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 57605 + ... + 58667.

It is an arithmetic number, because the mean of its divisors is an integer number (2677290).

Almost surely, 2^61798568 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 61798568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64254960).

61798568 is an abundant number, since it is smaller than the sum of its proper divisors (66711352).

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

61798568 is a wasteful number, since it uses less digits than its factorization.

61798568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1138 (or 1121 counting only the distinct ones).

The product of its digits is 725760, while the sum is 50.

The square root of 61798568 is about 7861.2065231744. The cubic root of 61798568 is about 395.3600690453.

The spelling of 61798568 in words is "sixty-one million, seven hundred ninety-eight thousand, five hundred sixty-eight".