494026578864 has 240 divisors, whose sum is σ = 1801744805952. Its totient is φ = 122628390912.

The previous prime is 494026578839. The next prime is 494026578869. The reversal of 494026578864 is 468875620494.

494026578864 is a `hidden beast` number, since 49 + 402 + 6 + 57 + 88 + 64 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (494026578869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 886069 + ... + 1331604.

Almost surely, 2^494026578864 is an apocalyptic number.

It is an amenable number.

494026578864 is an abundant number, since it is smaller than the sum of its proper divisors (1307718227088).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

494026578864 is a wasteful number, since it uses less digits than its factorization.

494026578864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2217724 (or 2217715 counting only the distinct ones).

The product of its (nonzero) digits is 92897280, while the sum is 63.

It can be divided in two parts, 49402 and 6578864, that added together give a palindrome (6628266).

The spelling of 494026578864 in words is "four hundred ninety-four billion, twenty-six million, five hundred seventy-eight thousand, eight hundred sixty-four".