51869273472 has 96 divisors (see below), whose sum is σ = 153293396880. Its totient is φ = 16822453248.

The previous prime is 51869273381. The next prime is 51869273479. The reversal of 51869273472 is 27437296815.

It is a happy number.

51869273472 is a `hidden beast` number, since 5 + 1 + 86 + 92 + 7 + 3 + 472 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51869273479) 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, 565828 + ... + 651075.

Almost surely, 2^51869273472 is an apocalyptic number.

It is an amenable number.

51869273472 is an abundant number, since it is smaller than the sum of its proper divisors (101424123408).

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

51869273472 is a wasteful number, since it uses less digits than its factorization.

51869273472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1216960 (or 1216945 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 54.

The spelling of 51869273472 in words is "fifty-one billion, eight hundred sixty-nine million, two hundred seventy-three thousand, four hundred seventy-two".