491230151159 has 32 divisors (see below), whose sum is σ = 554923837440. Its totient is φ = 430970400000.

The previous prime is 491230151143. The next prime is 491230151183. The reversal of 491230151159 is 951151032194.

It is a cyclic number.

It is not a de Polignac number, because 491230151159 - 2⁴ = 491230151143 is a prime.

It is a super-2 number, since 2×491230151159² (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (491230151119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16261049 + ... + 16291229.

It is an arithmetic number, because the mean of its divisors is an integer number (17341369920).

Almost surely, 2^491230151159 is an apocalyptic number.

491230151159 is a deficient number, since it is larger than the sum of its proper divisors (63693686281).

491230151159 is a wasteful number, since it uses less digits than its factorization.

491230151159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30623.

The product of its (nonzero) digits is 48600, while the sum is 41.

The spelling of 491230151159 in words is "four hundred ninety-one billion, two hundred thirty million, one hundred fifty-one thousand, one hundred fifty-nine".