51648208896 has 112 divisors (see below), whose sum is σ = 144969890400. Its totient is φ = 16309813248.

The previous prime is 51648208873. The next prime is 51648208919. The reversal of 51648208896 is 69880284615.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (51648208873) and next prime (51648208919).

It is a Harshad number since it is a multiple of its sum of digits (57).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 411640 + ... + 522248.

Almost surely, 2^51648208896 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 51648208896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72484945200).

51648208896 is an abundant number, since it is smaller than the sum of its proper divisors (93321681504).

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

51648208896 is a wasteful number, since it uses less digits than its factorization.

51648208896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110657 (or 110633 counting only the distinct ones).

The product of its (nonzero) digits is 6635520, while the sum is 57.

The spelling of 51648208896 in words is "fifty-one billion, six hundred forty-eight million, two hundred eight thousand, eight hundred ninety-six".