487791893241 has 27 divisors (see below), whose sum is σ = 743684346639. Its totient is φ = 308053947312.

The previous prime is 487791893201. The next prime is 487791893249. The reversal of 487791893241 is 142398197784.

The square root of 487791893241 is 698421.

It is a perfect power (a square), and thus also a powerful number.

487791893241 is a `hidden beast` number, since 487 + 7 + 9 + 1 + 89 + 32 + 41 = 666.

It can be written as a sum of positive squares in only one way, i.e., 237787893225 + 250004000016 = 487635^2 + 500004^2 .

It is not a de Polignac number, because 487791893241 - 2¹⁷ = 487791762169 is a prime.

It is a super-2 number, since 2×487791893241² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (487791893249) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 39803871 + ... + 39816123.

Almost surely, 2^487791893241 is an apocalyptic number.

487791893241 is the 698421-st square number.

487791893241 is the 349211-st centered octagonal number.

It is an amenable number.

487791893241 is a deficient number, since it is larger than the sum of its proper divisors (255892453398).

487791893241 is an frugal number, since it uses more digits than its factorization.

487791893241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24550 (or 12275 counting only the distinct ones).

The product of its digits is 24385536, while the sum is 63.

The spelling of 487791893241 in words is "four hundred eighty-seven billion, seven hundred ninety-one million, eight hundred ninety-three thousand, two hundred forty-one".