2668537574 has 16 divisors (see below), whose sum is σ = 4217319600. Its totient is φ = 1262892384.

The previous prime is 2668537561. The next prime is 2668537577. The reversal of 2668537574 is 4757358662.

It is a happy number.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2668537577) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11012 + ... + 73880.

It is an arithmetic number, because the mean of its divisors is an integer number (263582475).

Almost surely, 2^2668537574 is an apocalyptic number.

2668537574 is a deficient number, since it is larger than the sum of its proper divisors (1548782026).

2668537574 is a wasteful number, since it uses less digits than its factorization.

2668537574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64007.

The product of its digits is 8467200, while the sum is 53.

The square root of 2668537574 is about 51657.8897555833. The cubic root of 2668537574 is about 1387.0467765613.

The spelling of 2668537574 in words is "two billion, six hundred sixty-eight million, five hundred thirty-seven thousand, five hundred seventy-four".