667882688738 has 16 divisors (see below), whose sum is σ = 1009033188000. Its totient is φ = 331545229056.

The previous prime is 667882688729. The next prime is 667882688771. The reversal of 667882688738 is 837886288766.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1541120 + ... + 1926347.

It is an arithmetic number, because the mean of its divisors is an integer number (63064574250).

Almost surely, 2^667882688738 is an apocalyptic number.

667882688738 is a deficient number, since it is larger than the sum of its proper divisors (341150499262).

667882688738 is a wasteful number, since it uses less digits than its factorization.

667882688738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3468161.

The product of its digits is 2080899072, while the sum is 77.

The spelling of 667882688738 in words is "six hundred sixty-seven billion, eight hundred eighty-two million, six hundred eighty-eight thousand, seven hundred thirty-eight".