51726777250660 has 96 divisors (see below), whose sum is σ = 116679996695808. Its totient is φ = 19192084316160.

The previous prime is 51726777250657. The next prime is 51726777250667. The reversal of 51726777250660 is 6605277762715.

It is not an unprimeable number, because it can be changed into a prime (51726777250667) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 63736747 + ... + 64543213.

It is an arithmetic number, because the mean of its divisors is an integer number (1215416632248).

Almost surely, 2^{51726777250660} 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 51726777250660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58339998347904).

51726777250660 is an abundant number, since it is smaller than the sum of its proper divisors (64953219445148).

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

51726777250660 is a wasteful number, since it uses less digits than its factorization.

51726777250660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809221 (or 809219 counting only the distinct ones).

The product of its (nonzero) digits is 51861600, while the sum is 61.

The spelling of 51726777250660 in words is "fifty-one trillion, seven hundred twenty-six billion, seven hundred seventy-seven million, two hundred fifty thousand, six hundred sixty".