51470930720 has 192 divisors, whose sum is σ = 137952460800. Its totient is φ = 17976053760.

The previous prime is 51470930717. The next prime is 51470930729. The reversal of 51470930720 is 2703907415.

51470930720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-4 number, since 4×51470930720⁴ (a number of 44 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (51470930729) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10052321 + ... + 10057439.

It is an arithmetic number, because the mean of its divisors is an integer number (718502400).

Almost surely, 2^51470930720 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 51470930720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68976230400).

51470930720 is an abundant number, since it is smaller than the sum of its proper divisors (86481530080).

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

51470930720 is a wasteful number, since it uses less digits than its factorization.

51470930720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5371 (or 5363 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 38.

The spelling of 51470930720 in words is "fifty-one billion, four hundred seventy million, nine hundred thirty thousand, seven hundred twenty".