387845701973 has 2 divisors, whose sum is σ = 387845701974. Its totient is φ = 387845701972.

The previous prime is 387845701931. The next prime is 387845701981. The reversal of 387845701973 is 379107548783.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 322831921489 + 65013780484 = 568183^2 + 254978^2 .

It is an emirp because it is prime and its reverse (379107548783) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 387845701973 - 2¹⁴ = 387845685589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (387845701913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193922850986 + 193922850987.

It is an arithmetic number, because the mean of its divisors is an integer number (193922850987).

Almost surely, 2^387845701973 is an apocalyptic number.

It is an amenable number.

387845701973 is a deficient number, since it is larger than the sum of its proper divisors (1).

387845701973 is an equidigital number, since it uses as much as digits as its factorization.

387845701973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 35562240, while the sum is 62.

The spelling of 387845701973 in words is "three hundred eighty-seven billion, eight hundred forty-five million, seven hundred one thousand, nine hundred seventy-three".