3997134315287 has 4 divisors (see below), whose sum is σ = 3997317263976. Its totient is φ = 3996951366600.

The previous prime is 3997134315277. The next prime is 3997134315299. The reversal of 3997134315287 is 7825134317993.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3997134315287 - 2¹⁴ = 3997134298903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3997134315257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91441568 + ... + 91485269.

It is an arithmetic number, because the mean of its divisors is an integer number (999329315994).

Almost surely, 2^{3997134315287} is an apocalyptic number.

3997134315287 is a deficient number, since it is larger than the sum of its proper divisors (182948689).

3997134315287 is a wasteful number, since it uses less digits than its factorization.

3997134315287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182948688.

The product of its digits is 34292160, while the sum is 62.

The spelling of 3997134315287 in words is "three trillion, nine hundred ninety-seven billion, one hundred thirty-four million, three hundred fifteen thousand, two hundred eighty-seven".