494719987855 has 16 divisors (see below), whose sum is σ = 601931545920. Its totient is φ = 390266719488.

The previous prime is 494719987819. The next prime is 494719987873. The reversal of 494719987855 is 558789917494.

It is a cyclic number.

It is not a de Polignac number, because 494719987855 - 2²⁹ = 494183116943 is a prime.

It is a super-3 number, since 3×494719987855³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1499469 + ... + 1799401.

It is an arithmetic number, because the mean of its divisors is an integer number (37620721620).

Almost surely, 2^494719987855 is an apocalyptic number.

494719987855 is a deficient number, since it is larger than the sum of its proper divisors (107211558065).

494719987855 is a wasteful number, since it uses less digits than its factorization.

494719987855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304530.

The product of its digits is 914457600, while the sum is 76.

The spelling of 494719987855 in words is "four hundred ninety-four billion, seven hundred nineteen million, nine hundred eighty-seven thousand, eight hundred fifty-five".