3975401467987 has 8 divisors (see below), whose sum is σ = 3982531340304. Its totient is φ = 3968273031168.

The previous prime is 3975401467967. The next prime is 3975401468069. The reversal of 3975401467987 is 7897641045793.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3975401467987 - 2⁷ = 3975401467859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3975401467927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5263648 + ... + 5971330.

It is an arithmetic number, because the mean of its divisors is an integer number (497816417538).

Almost surely, 2^{3975401467987} is an apocalyptic number.

3975401467987 is a deficient number, since it is larger than the sum of its proper divisors (7129872317).

3975401467987 is an equidigital number, since it uses as much as digits as its factorization.

3975401467987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 717749.

The product of its (nonzero) digits is 320060160, while the sum is 70.

The spelling of 3975401467987 in words is "three trillion, nine hundred seventy-five billion, four hundred one million, four hundred sixty-seven thousand, nine hundred eighty-seven".