667031742884 has 24 divisors (see below), whose sum is σ = 1323261354240. Its totient is φ = 291657603744.

The previous prime is 667031742869. The next prime is 667031742889. The reversal of 667031742884 is 488247130766.

It is not an unprimeable number, because it can be changed into a prime (667031742889) 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, 337565684 + ... + 337567659.

It is an arithmetic number, because the mean of its divisors is an integer number (55135889760).

Almost surely, 2^667031742884 is an apocalyptic number.

It is an amenable number.

667031742884 is a deficient number, since it is larger than the sum of its proper divisors (656229611356).

667031742884 is a wasteful number, since it uses less digits than its factorization.

667031742884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 675133379 (or 675133377 counting only the distinct ones).

The product of its (nonzero) digits is 10838016, while the sum is 56.

The spelling of 667031742884 in words is "six hundred sixty-seven billion, thirty-one million, seven hundred forty-two thousand, eight hundred eighty-four".