3745864394387 has 2 divisors, whose sum is σ = 3745864394388. Its totient is φ = 3745864394386.

The previous prime is 3745864394359. The next prime is 3745864394413. The reversal of 3745864394387 is 7834934685473.

3745864394387 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3745864394387 - 2¹² = 3745864390291 is a prime.

It is a super-2 number, since 2×3745864394387² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3745864394387.

It is not a weakly prime, because it can be changed into another prime (3745864394087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1872932197193 + 1872932197194.

It is an arithmetic number, because the mean of its divisors is an integer number (1872932197194).

Almost surely, 2^{3745864394387} is an apocalyptic number.

3745864394387 is a deficient number, since it is larger than the sum of its proper divisors (1).

3745864394387 is an equidigital number, since it uses as much as digits as its factorization.

3745864394387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1463132160, while the sum is 71.

The spelling of 3745864394387 in words is "three trillion, seven hundred forty-five billion, eight hundred sixty-four million, three hundred ninety-four thousand, three hundred eighty-seven".