50405509494 has 16 divisors (see below), whose sum is σ = 112012243440. Its totient is φ = 16801836480.

The previous prime is 50405509373. The next prime is 50405509523. The reversal of 50405509494 is 49490550405.

50405509494 is a `hidden beast` number, since 5 + 0 + 4 + 0 + 550 + 9 + 4 + 94 = 666.

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, 466717627 + ... + 466717734.

It is an arithmetic number, because the mean of its divisors is an integer number (7000765215).

Almost surely, 2^50405509494 is an apocalyptic number.

50405509494 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

50405509494 is an abundant number, since it is smaller than the sum of its proper divisors (61606733946).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

50405509494 is a wasteful number, since it uses less digits than its factorization.

50405509494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 933435372 (or 933435366 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 45.

The spelling of 50405509494 in words is "fifty billion, four hundred five million, five hundred nine thousand, four hundred ninety-four".