51773645463 has 16 divisors (see below), whose sum is σ = 69873517056. Its totient is φ = 34094891520.

The previous prime is 51773645461. The next prime is 51773645489. The reversal of 51773645463 is 36454637715.

51773645463 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 51773645463 - 2¹ = 51773645461 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51773645461) 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, 2523858 + ... + 2544288.

It is an arithmetic number, because the mean of its divisors is an integer number (4367094816).

Almost surely, 2^51773645463 is an apocalyptic number.

51773645463 is a deficient number, since it is larger than the sum of its proper divisors (18099871593).

51773645463 is a wasteful number, since it uses less digits than its factorization.

51773645463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30694.

The product of its digits is 6350400, while the sum is 51.

The spelling of 51773645463 in words is "fifty-one billion, seven hundred seventy-three million, six hundred forty-five thousand, four hundred sixty-three".