6667374036739 has 4 divisors (see below), whose sum is σ = 7180248962656. Its totient is φ = 6154499110824.

The previous prime is 6667374036727. The next prime is 6667374036769. The reversal of 6667374036739 is 9376304737666.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6667374036739 - 2⁵ = 6667374036707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6667374036769) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 256437462939 + ... + 256437462964.

It is an arithmetic number, because the mean of its divisors is an integer number (1795062240664).

Almost surely, 2^{6667374036739} is an apocalyptic number.

6667374036739 is a deficient number, since it is larger than the sum of its proper divisors (512874925917).

6667374036739 is a wasteful number, since it uses less digits than its factorization.

6667374036739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512874925916.

The product of its (nonzero) digits is 432081216, while the sum is 67.

The spelling of 6667374036739 in words is "six trillion, six hundred sixty-seven billion, three hundred seventy-four million, thirty-six thousand, seven hundred thirty-nine".