50644742421 has 64 divisors (see below), whose sum is σ = 87795169280. Its totient is φ = 25217568000.

The previous prime is 50644742411. The next prime is 50644742437. The reversal of 50644742421 is 12424744605.

50644742421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 50644742421 - 2¹³ = 50644734229 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 50644742421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50644742411) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1450671 + ... + 1485171.

It is an arithmetic number, because the mean of its divisors is an integer number (1371799520).

Almost surely, 2^50644742421 is an apocalyptic number.

It is an amenable number.

50644742421 is a deficient number, since it is larger than the sum of its proper divisors (37150426859).

50644742421 is a wasteful number, since it uses less digits than its factorization.

50644742421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34826.

The product of its (nonzero) digits is 215040, while the sum is 39.

The spelling of 50644742421 in words is "fifty billion, six hundred forty-four million, seven hundred forty-two thousand, four hundred twenty-one".