487844465691 has 32 divisors (see below), whose sum is σ = 710943068160. Its totient is φ = 295100820000.

The previous prime is 487844465651. The next prime is 487844465737. The reversal of 487844465691 is 196564448784.

It is not a de Polignac number, because 487844465691 - 2¹⁷ = 487844334619 is a prime.

It is a super-2 number, since 2×487844465691² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (487844465611) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55187850 + ... + 55196688.

It is an arithmetic number, because the mean of its divisors is an integer number (22216970880).

Almost surely, 2^487844465691 is an apocalyptic number.

487844465691 is a deficient number, since it is larger than the sum of its proper divisors (223098602469).

487844465691 is a wasteful number, since it uses less digits than its factorization.

487844465691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11847.

The product of its digits is 185794560, while the sum is 66.

The spelling of 487844465691 in words is "four hundred eighty-seven billion, eight hundred forty-four million, four hundred sixty-five thousand, six hundred ninety-one".