50507664769 has 4 divisors (see below), whose sum is σ = 50508239296. Its totient is φ = 50507090244.

The previous prime is 50507664763. The next prime is 50507664799. The reversal of 50507664769 is 96746670505.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 96746670505 = 5 ⋅19349334101.

It is a cyclic number.

It is not a de Polignac number, because 50507664769 - 2³ = 50507664761 is a prime.

It is a super-2 number, since 2×50507664769² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50507664761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124749 + ... + 341434.

It is an arithmetic number, because the mean of its divisors is an integer number (12627059824).

Almost surely, 2^50507664769 is an apocalyptic number.

It is an amenable number.

50507664769 is a deficient number, since it is larger than the sum of its proper divisors (574527).

50507664769 is a wasteful number, since it uses less digits than its factorization.

50507664769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574526.

The product of its (nonzero) digits is 9525600, while the sum is 55.

The spelling of 50507664769 in words is "fifty billion, five hundred seven million, six hundred sixty-four thousand, seven hundred sixty-nine".