6669793494 has 96 divisors (see below), whose sum is σ = 17949771840. Its totient is φ = 1742881536.

The previous prime is 6669793489. The next prime is 6669793513. The reversal of 6669793494 is 4943979666.

It is a super-2 number, since 2×6669793494² = 88972290505209456072, which contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 159864 + ... + 197220.

It is an arithmetic number, because the mean of its divisors is an integer number (186976790).

Almost surely, 2^6669793494 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6669793494, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8974885920).

6669793494 is an abundant number, since it is smaller than the sum of its proper divisors (11279978346).

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

6669793494 is a wasteful number, since it uses less digits than its factorization.

6669793494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37494 (or 37491 counting only the distinct ones).

The product of its digits is 52907904, while the sum is 63.

The square root of 6669793494 is about 81668.8036768018. The cubic root of 6669793494 is about 1882.3662574889.

The spelling of 6669793494 in words is "six billion, six hundred sixty-nine million, seven hundred ninety-three thousand, four hundred ninety-four".