387339187641 has 16 divisors (see below), whose sum is σ = 606183337344. Its totient is φ = 215354605824.

The previous prime is 387339187621. The next prime is 387339187667. The reversal of 387339187641 is 146781933783.

It is not a de Polignac number, because 387339187641 - 2¹⁹ = 387338663353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (387339187621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 249252240 + ... + 249253793.

It is an arithmetic number, because the mean of its divisors is an integer number (37886458584).

Almost surely, 2^387339187641 is an apocalyptic number.

It is an amenable number.

387339187641 is a deficient number, since it is larger than the sum of its proper divisors (218844149703).

387339187641 is a wasteful number, since it uses less digits than its factorization.

387339187641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498506080.

The product of its digits is 18289152, while the sum is 60.

The spelling of 387339187641 in words is "three hundred eighty-seven billion, three hundred thirty-nine million, one hundred eighty-seven thousand, six hundred forty-one".