51506875670 has 8 divisors (see below), whose sum is σ = 92712376224. Its totient is φ = 20602750264.

The previous prime is 51506875649. The next prime is 51506875699. The reversal of 51506875670 is 7657860515.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2575343774 + ... + 2575343793.

It is an arithmetic number, because the mean of its divisors is an integer number (11589047028).

Almost surely, 2^51506875670 is an apocalyptic number.

51506875670 is a deficient number, since it is larger than the sum of its proper divisors (41205500554).

51506875670 is a wasteful number, since it uses less digits than its factorization.

51506875670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5150687574.

The product of its (nonzero) digits is 1764000, while the sum is 50.

The spelling of 51506875670 in words is "fifty-one billion, five hundred six million, eight hundred seventy-five thousand, six hundred seventy".