51871790880 has 960 divisors, whose sum is σ = 227486907648. Its totient is φ = 10883911680.

The previous prime is 51871790869. The next prime is 51871790899. The reversal of 51871790880 is 8809717815.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 286584390 + ... + 286584570.

Almost surely, 2^51871790880 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 51871790880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113743453824).

51871790880 is an abundant number, since it is smaller than the sum of its proper divisors (175615116768).

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

51871790880 is an equidigital number, since it uses as much as digits as its factorization.

51871790880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243 (or 211 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 54.

The spelling of 51871790880 in words is "fifty-one billion, eight hundred seventy-one million, seven hundred ninety thousand, eight hundred eighty".