671305615764 has 48 divisors (see below), whose sum is σ = 1792313123328. Its totient is φ = 191569660128.

The previous prime is 671305615763. The next prime is 671305615787. The reversal of 671305615764 is 467516503176.

671305615764 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671305615763) 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, 4762294 + ... + 4901229.

It is an arithmetic number, because the mean of its divisors is an integer number (37339856736).

Almost surely, 2^671305615764 is an apocalyptic number.

It is an amenable number.

671305615764 is an abundant number, since it is smaller than the sum of its proper divisors (1121007507564).

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

671305615764 is a wasteful number, since it uses less digits than its factorization.

671305615764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9664364 (or 9664362 counting only the distinct ones).

The product of its (nonzero) digits is 3175200, while the sum is 51.

The spelling of 671305615764 in words is "six hundred seventy-one billion, three hundred five million, six hundred fifteen thousand, seven hundred sixty-four".