51786940260 has 192 divisors, whose sum is σ = 163542048768. Its totient is φ = 12130560000.

The previous prime is 51786940207. The next prime is 51786940267. The reversal of 51786940260 is 6204968715.

It is not an unprimeable number, because it can be changed into a prime (51786940267) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 16591500 + ... + 16594620.

It is an arithmetic number, because the mean of its divisors is an integer number (851781504).

Almost surely, 2^51786940260 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 51786940260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81771024384).

51786940260 is an abundant number, since it is smaller than the sum of its proper divisors (111755108508).

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

51786940260 is a wasteful number, since it uses less digits than its factorization.

51786940260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3986 (or 3984 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 48.

The spelling of 51786940260 in words is "fifty-one billion, seven hundred eighty-six million, nine hundred forty thousand, two hundred sixty".