50104999989 has 18 divisors (see below), whose sum is σ = 79551466358. Its totient is φ = 30366666000.

The previous prime is 50104999981. The next prime is 50105000039. The reversal of 50104999989 is 98999940105.

50104999989 is a `hidden beast` number, since 50 + 1 + 0 + 499 + 9 + 98 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 37523564100 + 12581435889 = 193710^2 + 112167^2 .

It is not a de Polignac number, because 50104999989 - 2³ = 50104999981 is a prime.

It is a super-2 number, since 2×50104999989² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50104999981) 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 17 ways as a sum of consecutive naturals, for example, 23003962 + ... + 23006139.

Almost surely, 2^50104999989 is an apocalyptic number.

It is an amenable number.

50104999989 is a deficient number, since it is larger than the sum of its proper divisors (29446466369).

50104999989 is a wasteful number, since it uses less digits than its factorization.

50104999989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46010129 (or 46010115 counting only the distinct ones).

The product of its (nonzero) digits is 9447840, while the sum is 63.

The spelling of 50104999989 in words is "fifty billion, one hundred four million, nine hundred ninety-nine thousand, nine hundred eighty-nine".