387045369553 has 16 divisors (see below), whose sum is σ = 396022692240. Its totient is φ = 378182762496.

The previous prime is 387045369551. The next prime is 387045369589. The reversal of 387045369553 is 355963540783.

It can be written as a sum of positive squares in 8 ways, for example, as 147031601809 + 240013767744 = 383447^2 + 489912^2 .

It is a cyclic number.

It is not a de Polignac number, because 387045369553 - 2¹ = 387045369551 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (387045369551) 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, 5776701 + ... + 5843317.

It is an arithmetic number, because the mean of its divisors is an integer number (24751418265).

Almost surely, 2^387045369553 is an apocalyptic number.

It is an amenable number.

387045369553 is a deficient number, since it is larger than the sum of its proper divisors (8977322687).

387045369553 is an equidigital number, since it uses as much as digits as its factorization.

387045369553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67476.

The product of its (nonzero) digits is 40824000, while the sum is 58.

The spelling of 387045369553 in words is "three hundred eighty-seven billion, forty-five million, three hundred sixty-nine thousand, five hundred fifty-three".