3975401467989 has 96 divisors (see below), whose sum is σ = 7042883178240. Its totient is φ = 2192520960000.

The previous prime is 3975401467967. The next prime is 3975401468069. The reversal of 3975401467989 is 9897641045793.

3975401467989 is a `hidden beast` number, since 3 + 9 + 7 + 540 + 1 + 4 + 6 + 79 + 8 + 9 = 666.

It is not a de Polignac number, because 3975401467989 - 2⁵ = 3975401467957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3975401467789) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 149996239 + ... + 150022739.

It is an arithmetic number, because the mean of its divisors is an integer number (73363366440).

Almost surely, 2^{3975401467989} is an apocalyptic number.

It is an amenable number.

3975401467989 is a deficient number, since it is larger than the sum of its proper divisors (3067481710251).

3975401467989 is a wasteful number, since it uses less digits than its factorization.

3975401467989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29593 (or 29581 counting only the distinct ones).

The product of its (nonzero) digits is 411505920, while the sum is 72.

The spelling of 3975401467989 in words is "three trillion, nine hundred seventy-five billion, four hundred one million, four hundred sixty-seven thousand, nine hundred eighty-nine".