491078941054 has 8 divisors (see below), whose sum is σ = 793281366360. Its totient is φ = 226651818936.

The previous prime is 491078941049. The next prime is 491078941103. The reversal of 491078941054 is 450149870194.

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

It is a junction number, because it is equal to n+sod(n) for n = 491078940992 and 491078941010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9443825764 + ... + 9443825815.

It is an arithmetic number, because the mean of its divisors is an integer number (99160170795).

Almost surely, 2^491078941054 is an apocalyptic number.

491078941054 is a deficient number, since it is larger than the sum of its proper divisors (302202425306).

491078941054 is a wasteful number, since it uses less digits than its factorization.

491078941054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18887651594.

The product of its (nonzero) digits is 1451520, while the sum is 52.

The spelling of 491078941054 in words is "four hundred ninety-one billion, seventy-eight million, nine hundred forty-one thousand, fifty-four".