51898498848 has 240 divisors, whose sum is σ = 174667933440. Its totient is φ = 14808489984.

The previous prime is 51898498837. The next prime is 51898498849. The reversal of 51898498848 is 84889489815.

51898498848 is a `hidden beast` number, since 5 + 1 + 8 + 98 + 498 + 8 + 48 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is not an unprimeable number, because it can be changed into a prime (51898498849) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 18850240 + ... + 18852992.

It is an arithmetic number, because the mean of its divisors is an integer number (727783056).

Almost surely, 2^51898498848 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 51898498848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87333966720).

51898498848 is an abundant number, since it is smaller than the sum of its proper divisors (122769434592).

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

51898498848 is a wasteful number, since it uses less digits than its factorization.

51898498848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3821 (or 3804 counting only the distinct ones).

The product of its digits is 212336640, while the sum is 72.

The spelling of 51898498848 in words is "fifty-one billion, eight hundred ninety-eight million, four hundred ninety-eight thousand, eight hundred forty-eight".