50917989405 has 8 divisors (see below), whose sum is σ = 81468783072. Its totient is φ = 27156261008.

The previous prime is 50917989383. The next prime is 50917989461. The reversal of 50917989405 is 50498971905.

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 50917989405 - 2¹¹ = 50917987357 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1697266299 + ... + 1697266328.

It is an arithmetic number, because the mean of its divisors is an integer number (10183597884).

Almost surely, 2^50917989405 is an apocalyptic number.

It is an amenable number.

50917989405 is a deficient number, since it is larger than the sum of its proper divisors (30550793667).

50917989405 is a wasteful number, since it uses less digits than its factorization.

50917989405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3394532635.

The product of its (nonzero) digits is 4082400, while the sum is 57.

The spelling of 50917989405 in words is "fifty billion, nine hundred seventeen million, nine hundred eighty-nine thousand, four hundred five".