51707117280 has 192 divisors, whose sum is σ = 200464685568. Its totient is φ = 10909624320.

The previous prime is 51707117251. The next prime is 51707117299. The reversal of 51707117280 is 8271170715.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 548206 + ... + 635565.

It is an arithmetic number, because the mean of its divisors is an integer number (1044086904).

Almost surely, 2^51707117280 is an apocalyptic number.

It is an amenable number.

51707117280 is an abundant number, since it is smaller than the sum of its proper divisors (148757568288).

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

51707117280 is a wasteful number, since it uses less digits than its factorization.

51707117280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1183809 (or 1183801 counting only the distinct ones).

The product of its (nonzero) digits is 27440, while the sum is 39.

Adding to 51707117280 its reverse (8271170715), we get a palindrome (59978287995).

The spelling of 51707117280 in words is "fifty-one billion, seven hundred seven million, one hundred seventeen thousand, two hundred eighty".