667426486737 has 16 divisors (see below), whose sum is σ = 900089443008. Its totient is φ = 439870756800.

The previous prime is 667426486721. The next prime is 667426486757. The reversal of 667426486737 is 737684624766.

It is not a de Polignac number, because 667426486737 - 2⁴ = 667426486721 is a prime.

It is not an unprimeable number, because it can be changed into a prime (667426486757) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1488763 + ... + 1884480.

It is an arithmetic number, because the mean of its divisors is an integer number (56255590188).

Almost surely, 2^667426486737 is an apocalyptic number.

It is an amenable number.

667426486737 is a deficient number, since it is larger than the sum of its proper divisors (232662956271).

667426486737 is a wasteful number, since it uses less digits than its factorization.

667426486737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3374000.

The product of its digits is 341397504, while the sum is 66.

The spelling of 667426486737 in words is "six hundred sixty-seven billion, four hundred twenty-six million, four hundred eighty-six thousand, seven hundred thirty-seven".