387971345803 has 2 divisors, whose sum is σ = 387971345804. Its totient is φ = 387971345802.

The previous prime is 387971345711. The next prime is 387971345819. The reversal of 387971345803 is 308543179783.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 387971345803 - 2¹⁷ = 387971214731 is a prime.

It is not a weakly prime, because it can be changed into another prime (387971346803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193985672901 + 193985672902.

It is an arithmetic number, because the mean of its divisors is an integer number (193985672902).

Almost surely, 2^387971345803 is an apocalyptic number.

387971345803 is a deficient number, since it is larger than the sum of its proper divisors (1).

387971345803 is an equidigital number, since it uses as much as digits as its factorization.

387971345803 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15240960, while the sum is 58.

The spelling of 387971345803 in words is "three hundred eighty-seven billion, nine hundred seventy-one million, three hundred forty-five thousand, eight hundred three".