51418720048 has 20 divisors (see below), whose sum is σ = 103059073440. Its totient is φ = 24822830144.

The previous prime is 51418720027. The next prime is 51418720049. The reversal of 51418720048 is 84002781415.

It is not an unprimeable number, because it can be changed into a prime (51418720049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55407640 + ... + 55408567.

It is an arithmetic number, because the mean of its divisors is an integer number (5152953672).

Almost surely, 2^51418720048 is an apocalyptic number.

51418720048 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

It is an amenable number.

51418720048 is an abundant number, since it is smaller than the sum of its proper divisors (51640353392).

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

51418720048 is a wasteful number, since it uses less digits than its factorization.

51418720048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110816244 (or 110816238 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 40.

The spelling of 51418720048 in words is "fifty-one billion, four hundred eighteen million, seven hundred twenty thousand, forty-eight".