51072164270 has 32 divisors (see below), whose sum is σ = 95061897216. Its totient is φ = 19735178400.

The previous prime is 51072164267. The next prime is 51072164279. The reversal of 51072164270 is 7246127015.

51072164270 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 51072164270.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51072164279) 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, 32747 + ... + 321273.

It is an arithmetic number, because the mean of its divisors is an integer number (2970684288).

Almost surely, 2^51072164270 is an apocalyptic number.

51072164270 is a deficient number, since it is larger than the sum of its proper divisors (43989732946).

51072164270 is a wasteful number, since it uses less digits than its factorization.

51072164270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289136.

The product of its (nonzero) digits is 23520, while the sum is 35.

The spelling of 51072164270 in words is "fifty-one billion, seventy-two million, one hundred sixty-four thousand, two hundred seventy".