491602702558 has 16 divisors (see below), whose sum is σ = 839416473216. Its totient is φ = 213740305240.

The previous prime is 491602702537. The next prime is 491602702559. The reversal of 491602702558 is 855207206194.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (491602702559) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 485772916 + ... + 485773927.

It is an arithmetic number, because the mean of its divisors is an integer number (52463529576).

Almost surely, 2^491602702558 is an apocalyptic number.

491602702558 is a deficient number, since it is larger than the sum of its proper divisors (347813770658).

491602702558 is a wasteful number, since it uses less digits than its factorization.

491602702558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 971546879.

The product of its (nonzero) digits is 1209600, while the sum is 49.

The spelling of 491602702558 in words is "four hundred ninety-one billion, six hundred two million, seven hundred two thousand, five hundred fifty-eight".