5385736521781 has 16 divisors (see below), whose sum is σ = 7109665937280. Its totient is φ = 3949814407680.

The previous prime is 5385736521769. The next prime is 5385736521821. The reversal of 5385736521781 is 1871256375835.

It is a cyclic number.

It is not a de Polignac number, because 5385736521781 - 2¹⁷ = 5385736390709 is a prime.

It is a super-2 number, since 2×5385736521781² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5385736521751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2057193696 + ... + 2057196313.

It is an arithmetic number, because the mean of its divisors is an integer number (444354121080).

Almost surely, 2^{5385736521781} is an apocalyptic number.

It is an amenable number.

5385736521781 is a deficient number, since it is larger than the sum of its proper divisors (1723929415499).

5385736521781 is a wasteful number, since it uses less digits than its factorization.

5385736521781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4114390044.

The product of its digits is 42336000, while the sum is 61.

The spelling of 5385736521781 in words is "five trillion, three hundred eighty-five billion, seven hundred thirty-six million, five hundred twenty-one thousand, seven hundred eighty-one".