498378658687 has 8 divisors (see below), whose sum is σ = 613389118496. Its totient is φ = 394321576032.

The previous prime is 498378658663. The next prime is 498378658691. The reversal of 498378658687 is 786856873894.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 498378658687 - 2¹⁵ = 498378625919 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (498378658637) 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 7 ways as a sum of consecutive naturals, for example, 2738344188 + ... + 2738344369.

It is an arithmetic number, because the mean of its divisors is an integer number (76673639812).

Almost surely, 2^498378658687 is an apocalyptic number.

498378658687 is a deficient number, since it is larger than the sum of its proper divisors (115010459809).

498378658687 is a wasteful number, since it uses less digits than its factorization.

498378658687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5476688577.

The product of its digits is 3901685760, while the sum is 79.

The spelling of 498378658687 in words is "four hundred ninety-eight billion, three hundred seventy-eight million, six hundred fifty-eight thousand, six hundred eighty-seven".