4987443031397 has 2 divisors, whose sum is σ = 4987443031398. Its totient is φ = 4987443031396.

The previous prime is 4987443031367. The next prime is 4987443031411. The reversal of 4987443031397 is 7931303447894.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3781123029121 + 1206320002276 = 1944511^2 + 1098326^2 .

It is a cyclic number.

It is not a de Polignac number, because 4987443031397 - 2¹⁴ = 4987443015013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4987443031367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2493721515698 + 2493721515699.

It is an arithmetic number, because the mean of its divisors is an integer number (2493721515699).

Almost surely, 2^{4987443031397} is an apocalyptic number.

It is an amenable number.

4987443031397 is a deficient number, since it is larger than the sum of its proper divisors (1).

4987443031397 is an equidigital number, since it uses as much as digits as its factorization.

4987443031397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54867456, while the sum is 62.

The spelling of 4987443031397 in words is "four trillion, nine hundred eighty-seven billion, four hundred forty-three million, thirty-one thousand, three hundred ninety-seven".