51044341890 has 128 divisors (see below), whose sum is σ = 132734361600. Its totient is φ = 12522781440.

The previous prime is 51044341889. The next prime is 51044341921. The reversal of 51044341890 is 9814344015.

51044341890 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2737539 + ... + 2756121.

It is an arithmetic number, because the mean of its divisors is an integer number (1036987200).

Almost surely, 2^51044341890 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51044341890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66367180800).

51044341890 is an abundant number, since it is smaller than the sum of its proper divisors (81690019710).

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

51044341890 is a wasteful number, since it uses less digits than its factorization.

51044341890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18752.

The product of its (nonzero) digits is 69120, while the sum is 39.

The spelling of 51044341890 in words is "fifty-one billion, forty-four million, three hundred forty-one thousand, eight hundred ninety".