494761587489 has 96 divisors (see below), whose sum is σ = 818330333184. Its totient is φ = 285956490240.

The previous prime is 494761587449. The next prime is 494761587553. The reversal of 494761587489 is 984785167494.

494761587489 is a `hidden beast` number, since 4 + 9 + 4 + 7 + 61 + 5 + 87 + 489 = 666.

It is not a de Polignac number, because 494761587489 - 2¹⁷ = 494761456417 is a prime.

It is a super-3 number, since 3×494761587489³ (a number of 36 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (494761587449) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 14836144 + ... + 14869454.

It is an arithmetic number, because the mean of its divisors is an integer number (8524274304).

Almost surely, 2^494761587489 is an apocalyptic number.

It is an amenable number.

494761587489 is a deficient number, since it is larger than the sum of its proper divisors (323568745695).

494761587489 is a wasteful number, since it uses less digits than its factorization.

494761587489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33487 (or 33484 counting only the distinct ones).

The product of its digits is 487710720, while the sum is 72.

The spelling of 494761587489 in words is "four hundred ninety-four billion, seven hundred sixty-one million, five hundred eighty-seven thousand, four hundred eighty-nine".