2667449694 has 192 divisors, whose sum is σ = 6881034240. Its totient is φ = 674593920.

The previous prime is 2667449689. The next prime is 2667449737. The reversal of 2667449694 is 4969447662.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 33765147 + ... + 33765225.

It is an arithmetic number, because the mean of its divisors is an integer number (35838720).

Almost surely, 2^2667449694 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2667449694, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3440517120).

2667449694 is an abundant number, since it is smaller than the sum of its proper divisors (4213584546).

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

2667449694 is a wasteful number, since it uses less digits than its factorization.

2667449694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255 (or 242 counting only the distinct ones).

The product of its digits is 15676416, while the sum is 57.

The square root of 2667449694 is about 51647.3590225096. The cubic root of 2667449694 is about 1386.8582656258.

The spelling of 2667449694 in words is "two billion, six hundred sixty-seven million, four hundred forty-nine thousand, six hundred ninety-four".