494195694864 has 40 divisors (see below), whose sum is σ = 1351770579360. Its totient is φ = 155041786368.

The previous prime is 494195694823. The next prime is 494195694871. The reversal of 494195694864 is 468496591494.

It is a happy number.

It is a super-2 number, since 2×494195694864² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 302815174 + ... + 302816805.

It is an arithmetic number, because the mean of its divisors is an integer number (33794264484).

Almost surely, 2^494195694864 is an apocalyptic number.

It is an amenable number.

494195694864 is an abundant number, since it is smaller than the sum of its proper divisors (857574884496).

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

494195694864 is a wasteful number, since it uses less digits than its factorization.

494195694864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605632007 (or 605632001 counting only the distinct ones).

The product of its digits is 268738560, while the sum is 69.

The spelling of 494195694864 in words is "four hundred ninety-four billion, one hundred ninety-five million, six hundred ninety-four thousand, eight hundred sixty-four".