667904069763 has 128 divisors (see below), whose sum is σ = 1282188902400. Its totient is φ = 334693814400.

The previous prime is 667904069743. The next prime is 667904069773. The reversal of 667904069763 is 367960409766.

It is not a de Polignac number, because 667904069763 - 2⁵ = 667904069731 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a self number, because there is not a number n which added to its sum of digits gives 667904069763.

It is not an unprimeable number, because it can be changed into a prime (667904069743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2429953 + ... + 2690813.

It is an arithmetic number, because the mean of its divisors is an integer number (10017100800).

Almost surely, 2^667904069763 is an apocalyptic number.

667904069763 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

667904069763 is a deficient number, since it is larger than the sum of its proper divisors (614284832637).

667904069763 is a wasteful number, since it uses less digits than its factorization.

667904069763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260950 (or 260944 counting only the distinct ones).

The product of its (nonzero) digits is 61725888, while the sum is 63.

The spelling of 667904069763 in words is "six hundred sixty-seven billion, nine hundred four million, sixty-nine thousand, seven hundred sixty-three".