387573487049 has 12 divisors (see below), whose sum is σ = 451336151700. Its totient is φ = 331848211968.

The previous prime is 387573487013. The next prime is 387573487061. The reversal of 387573487049 is 940784375783.

It can be written as a sum of positive squares in 2 ways, for example, as 50427193600 + 337146293449 = 224560^2 + 580643^2 .

It is not a de Polignac number, because 387573487049 - 2¹⁶ = 387573421513 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (387573487069) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4211564 + ... + 4302605.

It is an arithmetic number, because the mean of its divisors is an integer number (37611345975).

Almost surely, 2^387573487049 is an apocalyptic number.

It is an amenable number.

387573487049 is a deficient number, since it is larger than the sum of its proper divisors (63762664651).

387573487049 is an equidigital number, since it uses as much as digits as its factorization.

387573487049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8515112 (or 8515105 counting only the distinct ones).

The product of its (nonzero) digits is 142248960, while the sum is 65.

The spelling of 387573487049 in words is "three hundred eighty-seven billion, five hundred seventy-three million, four hundred eighty-seven thousand, forty-nine".