51688954730 has 16 divisors (see below), whose sum is σ = 106331564160. Its totient is φ = 17721927312.

The previous prime is 51688954697. The next prime is 51688954783. The reversal of 51688954730 is 3745988615.

51688954730 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 369206750 + ... + 369206889.

It is an arithmetic number, because the mean of its divisors is an integer number (6645722760).

Almost surely, 2^51688954730 is an apocalyptic number.

51688954730 is an abundant number, since it is smaller than the sum of its proper divisors (54642609430).

51688954730 is a wasteful number, since it uses less digits than its factorization.

51688954730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 738413653.

The product of its (nonzero) digits is 7257600, while the sum is 56.

The spelling of 51688954730 in words is "fifty-one billion, six hundred eighty-eight million, nine hundred fifty-four thousand, seven hundred thirty".