387487748391 has 32 divisors (see below), whose sum is σ = 528336027648. Its totient is φ = 252545741280.

The previous prime is 387487748381. The next prime is 387487748393. The reversal of 387487748391 is 193847784783.

It is not a de Polignac number, because 387487748391 - 2⁵ = 387487748359 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387487748393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 85668256 + ... + 85672778.

It is an arithmetic number, because the mean of its divisors is an integer number (16510500864).

Almost surely, 2^387487748391 is an apocalyptic number.

387487748391 is a deficient number, since it is larger than the sum of its proper divisors (140848279257).

387487748391 is a wasteful number, since it uses less digits than its factorization.

387487748391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7891.

The product of its digits is 227598336, while the sum is 69.

The spelling of 387487748391 in words is "three hundred eighty-seven billion, four hundred eighty-seven million, seven hundred forty-eight thousand, three hundred ninety-one".