51871269267 has 16 divisors (see below), whose sum is σ = 76868654080. Its totient is φ = 34570798056.

The previous prime is 51871269259. The next prime is 51871269299. The reversal of 51871269267 is 76296217815.

51871269267 is a `hidden beast` number, since 51 + 8 + 71 + 269 + 267 = 666.

It is not a de Polignac number, because 51871269267 - 2³ = 51871269259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51871267267) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 183883 + ... + 370884.

It is an arithmetic number, because the mean of its divisors is an integer number (4804290880).

Almost surely, 2^51871269267 is an apocalyptic number.

51871269267 is a deficient number, since it is larger than the sum of its proper divisors (24997384813).

51871269267 is a wasteful number, since it uses less digits than its factorization.

51871269267 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 558239 (or 558233 counting only the distinct ones).

The product of its digits is 2540160, while the sum is 54.

The spelling of 51871269267 in words is "fifty-one billion, eight hundred seventy-one million, two hundred sixty-nine thousand, two hundred sixty-seven".