50451091069 has 4 divisors (see below), whose sum is σ = 50455575360. Its totient is φ = 50446606780.

The previous prime is 50451091057. The next prime is 50451091099. The reversal of 50451091069 is 96019015405.

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.

It is a cyclic number.

It is not a de Polignac number, because 50451091069 - 2⁷ = 50451090941 is a prime.

It is a super-2 number, since 2×50451091069² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50451091049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2225227 + ... + 2247784.

It is an arithmetic number, because the mean of its divisors is an integer number (12613893840).

Almost surely, 2^50451091069 is an apocalyptic number.

It is an amenable number.

50451091069 is a deficient number, since it is larger than the sum of its proper divisors (4484291).

50451091069 is a wasteful number, since it uses less digits than its factorization.

50451091069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4484290.

The product of its (nonzero) digits is 48600, while the sum is 40.

The spelling of 50451091069 in words is "fifty billion, four hundred fifty-one million, ninety-one thousand, sixty-nine".