51440211474 has 16 divisors (see below), whose sum is σ = 102882998208. Its totient is φ = 17146307952.

The previous prime is 51440211461. The next prime is 51440211479. The reversal of 51440211474 is 47411204415.

51440211474 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (51440211479) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 237699 + ... + 399225.

It is an arithmetic number, because the mean of its divisors is an integer number (6430187388).

Almost surely, 2^51440211474 is an apocalyptic number.

51440211474 is an abundant number, since it is smaller than the sum of its proper divisors (51442786734).

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

51440211474 is a wasteful number, since it uses less digits than its factorization.

51440211474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214609.

The product of its (nonzero) digits is 17920, while the sum is 33.

Adding to 51440211474 its reverse (47411204415), we get a palindrome (98851415889).

The spelling of 51440211474 in words is "fifty-one billion, four hundred forty million, two hundred eleven thousand, four hundred seventy-four".