51422352480 has 72 divisors (see below), whose sum is σ = 175478782752. Its totient is φ = 13712626944.

The previous prime is 51422352473. The next prime is 51422352481. The reversal of 51422352480 is 8425322415.

51422352480 is a `hidden beast` number, since 5 + 142 + 2 + 35 + 2 + 480 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51422352481) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17853544 + ... + 17856423.

It is an arithmetic number, because the mean of its divisors is an integer number (2437205316).

Almost surely, 2^51422352480 is an apocalyptic number.

It is an amenable number.

51422352480 is an abundant number, since it is smaller than the sum of its proper divisors (124056430272).

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

51422352480 is a wasteful number, since it uses less digits than its factorization.

51422352480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35709988 (or 35709977 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 36.

Adding to 51422352480 its reverse (8425322415), we get a palindrome (59847674895).

The spelling of 51422352480 in words is "fifty-one billion, four hundred twenty-two million, three hundred fifty-two thousand, four hundred eighty".