3971495856470 has 16 divisors (see below), whose sum is σ = 7459505261280. Its totient is φ = 1519528849344.

The previous prime is 3971495856467. The next prime is 3971495856499. The reversal of 3971495856470 is 746585941793.

It is a self number, because there is not a number n which added to its sum of digits gives 3971495856470.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 8633686415 + ... + 8633686874.

It is an arithmetic number, because the mean of its divisors is an integer number (466219078830).

Almost surely, 2^{3971495856470} is an apocalyptic number.

3971495856470 is a deficient number, since it is larger than the sum of its proper divisors (3488009404810).

3971495856470 is a wasteful number, since it uses less digits than its factorization.

3971495856470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17267373319.

The product of its (nonzero) digits is 228614400, while the sum is 68.

The spelling of 3971495856470 in words is "three trillion, nine hundred seventy-one billion, four hundred ninety-five million, eight hundred fifty-six thousand, four hundred seventy".