491285575054 has 8 divisors (see below), whose sum is σ = 737029236888. Its totient is φ = 245609162760.

The previous prime is 491285575021. The next prime is 491285575057. The reversal of 491285575054 is 450575582194.

It is a happy number.

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

It is a super-2 number, since 2×491285575054² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 491285574986 and 491285575004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (491285575057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16794117 + ... + 16823344.

It is an arithmetic number, because the mean of its divisors is an integer number (92128654611).

Almost surely, 2^491285575054 is an apocalyptic number.

491285575054 is a deficient number, since it is larger than the sum of its proper divisors (245743661834).

491285575054 is a wasteful number, since it uses less digits than its factorization.

491285575054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33624770.

The product of its (nonzero) digits is 10080000, while the sum is 55.

The spelling of 491285575054 in words is "four hundred ninety-one billion, two hundred eighty-five million, five hundred seventy-five thousand, fifty-four".