51670852356872 has 32 divisors (see below), whose sum is σ = 110786417414400. Its totient is φ = 22132018537344.

The previous prime is 51670852356841. The next prime is 51670852356887. The reversal of 51670852356872 is 27865325807615.

It is a happy number.

It is a hoax number, since the sum of its digits (65) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 51670852356799 and 51670852356808.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 263077472 + ... + 263273807.

It is an arithmetic number, because the mean of its divisors is an integer number (3462075544200).

Almost surely, 2^{51670852356872} is an apocalyptic number.

It is an amenable number.

51670852356872 is an abundant number, since it is smaller than the sum of its proper divisors (59115565057528).

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

51670852356872 is a wasteful number, since it uses less digits than its factorization.

51670852356872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526353045 (or 526353041 counting only the distinct ones).

The product of its (nonzero) digits is 169344000, while the sum is 65.

The spelling of 51670852356872 in words is "fifty-one trillion, six hundred seventy billion, eight hundred fifty-two million, three hundred fifty-six thousand, eight hundred seventy-two".