491077190258 has 8 divisors (see below), whose sum is σ = 739777227228. Its totient is φ = 244484781184.

The previous prime is 491077190249. The next prime is 491077190269. The reversal of 491077190258 is 852091770194.

It can be written as a sum of positive squares in 2 ways, for example, as 489757829929 + 1319360329 = 699827^2 + 36323^2 .

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

It is a super-3 number, since 3×491077190258³ (a number of 36 digits) contains 333 as substring.

It is a Curzon 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, 526906391 + ... + 526907322.

Almost surely, 2^491077190258 is an apocalyptic number.

491077190258 is a deficient number, since it is larger than the sum of its proper divisors (248700036970).

491077190258 is a wasteful number, since it uses less digits than its factorization.

491077190258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1053813948.

The product of its (nonzero) digits is 1270080, while the sum is 53.

The spelling of 491077190258 in words is "four hundred ninety-one billion, seventy-seven million, one hundred ninety thousand, two hundred fifty-eight".