51978530006 has 16 divisors (see below), whose sum is σ = 85388461200. Its totient is φ = 23583478368.

The previous prime is 51978529991. The next prime is 51978530041. The reversal of 51978530006 is 60003587915.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16940621 + ... + 16943688.

It is an arithmetic number, because the mean of its divisors is an integer number (5336778825).

Almost surely, 2^51978530006 is an apocalyptic number.

51978530006 is a deficient number, since it is larger than the sum of its proper divisors (33409931194).

51978530006 is a wasteful number, since it uses less digits than its factorization.

51978530006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33884383.

The product of its (nonzero) digits is 226800, while the sum is 44.

The spelling of 51978530006 in words is "fifty-one billion, nine hundred seventy-eight million, five hundred thirty thousand, six".