671033392404 has 12 divisors (see below), whose sum is σ = 1565744582304. Its totient is φ = 223677797464.

The previous prime is 671033392399. The next prime is 671033392409. The reversal of 671033392404 is 404293330176.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (671033392399) and next prime (671033392409).

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671033392409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27959724672 + ... + 27959724695.

It is an arithmetic number, because the mean of its divisors is an integer number (130478715192).

Almost surely, 2^671033392404 is an apocalyptic number.

It is an amenable number.

671033392404 is an abundant number, since it is smaller than the sum of its proper divisors (894711189900).

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

671033392404 is a wasteful number, since it uses less digits than its factorization.

671033392404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55919449374 (or 55919449372 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 42.

The spelling of 671033392404 in words is "six hundred seventy-one billion, thirty-three million, three hundred ninety-two thousand, four hundred four".