6400375630671 has 16 divisors (see below), whose sum is σ = 9348266492928. Its totient is φ = 3862920028800.

The previous prime is 6400375630633. The next prime is 6400375630679. The reversal of 6400375630671 is 1760365730046.

It is not a de Polignac number, because 6400375630671 - 2¹³ = 6400375622479 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6400375630671.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6400375630679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 402379551 + ... + 402395456.

It is an arithmetic number, because the mean of its divisors is an integer number (584266655808).

Almost surely, 2^{6400375630671} is an apocalyptic number.

6400375630671 is a deficient number, since it is larger than the sum of its proper divisors (2947890862257).

6400375630671 is a wasteful number, since it uses less digits than its factorization.

6400375630671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 804775262.

The product of its (nonzero) digits is 1905120, while the sum is 48.

The spelling of 6400375630671 in words is "six trillion, four hundred billion, three hundred seventy-five million, six hundred thirty thousand, six hundred seventy-one".