50551812919789 has 8 divisors (see below), whose sum is σ = 51418549980000. Its totient is φ = 49685406748752.

The previous prime is 50551812919759. The next prime is 50551812919793. The reversal of 50551812919789 is 98791921815505.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 50551812919789 - 2¹⁵ = 50551812887021 is a prime.

It is a super-2 number, since 2×50551812919789² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50551812919759) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82414114 + ... + 83025235.

It is an arithmetic number, because the mean of its divisors is an integer number (6427318747500).

Almost surely, 2^{50551812919789} is an apocalyptic number.

50551812919789 is a gapful number since it is divisible by the number (59) formed by its first and last digit.

It is an amenable number.

50551812919789 is a deficient number, since it is larger than the sum of its proper divisors (866737060211).

50551812919789 is a wasteful number, since it uses less digits than its factorization.

50551812919789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165444587.

The product of its (nonzero) digits is 81648000, while the sum is 70.

The spelling of 50551812919789 in words is "fifty trillion, five hundred fifty-one billion, eight hundred twelve million, nine hundred nineteen thousand, seven hundred eighty-nine".