61026250880 has 128 divisors (see below), whose sum is σ = 166858030080. Its totient is φ = 20907528192.

The previous prime is 61026250861. The next prime is 61026250903. The reversal of 61026250880 is 8805262016.

It is a tau number, because it is divible by the number of its divisors (128).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7015814 + ... + 7024506.

It is an arithmetic number, because the mean of its divisors is an integer number (1303578360).

Almost surely, 2^61026250880 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 61026250880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83429015040).

61026250880 is an abundant number, since it is smaller than the sum of its proper divisors (105831779200).

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

61026250880 is a wasteful number, since it uses less digits than its factorization.

61026250880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10286 (or 10274 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 38.

The spelling of 61026250880 in words is "sixty-one billion, twenty-six million, two hundred fifty thousand, eight hundred eighty".