671464007748 has 30 divisors (see below), whose sum is σ = 1755339551966. Its totient is φ = 223821335808.

The previous prime is 671464007681. The next prime is 671464007759. The reversal of 671464007748 is 847700464176.

671464007748 is a `hidden beast` number, since 6 + 71 + 464 + 0 + 0 + 77 + 48 = 666.

It can be written as a sum of positive squares in only one way, i.e., 428909727744 + 242554280004 = 654912^2 + 492498^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 671464007694 and 671464007703.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1036209565 + ... + 1036210212.

Almost surely, 2^671464007748 is an apocalyptic number.

It is an amenable number.

671464007748 is an abundant number, since it is smaller than the sum of its proper divisors (1083875544218).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

671464007748 is a wasteful number, since it uses less digits than its factorization.

671464007748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2072419793 (or 2072419782 counting only the distinct ones).

The product of its (nonzero) digits is 6322176, while the sum is 54.

The spelling of 671464007748 in words is "six hundred seventy-one billion, four hundred sixty-four million, seven thousand, seven hundred forty-eight".