51902698848 has 1152 divisors, whose sum is σ = 203863080960. Its totient is φ = 11321856000.

The previous prime is 51902698831. The next prime is 51902698853. The reversal of 51902698848 is 84889620915.

It is a junction number, because it is equal to n+sod(n) for n = 51902698791 and 51902698800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 396203743 + ... + 396203873.

It is an arithmetic number, because the mean of its divisors is an integer number (176964480).

Almost surely, 2^51902698848 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 51902698848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101931540480).

51902698848 is an abundant number, since it is smaller than the sum of its proper divisors (151960382112).

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

51902698848 is a wasteful number, since it uses less digits than its factorization.

51902698848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232 (or 217 counting only the distinct ones).

The product of its (nonzero) digits is 9953280, while the sum is 60.

The spelling of 51902698848 in words is "fifty-one billion, nine hundred two million, six hundred ninety-eight thousand, eight hundred forty-eight".