5362399721 has 6 divisors (see below), whose sum is σ = 6237893610. Its totient is φ = 4596342576.

The previous prime is 5362399673. The next prime is 5362399759. The reversal of 5362399721 is 1279932635.

It can be written as a sum of positive squares in only one way, i.e., 2850385321 + 2512014400 = 53389^2 + 50120^2 .

It is not a de Polignac number, because 5362399721 - 2¹⁴ = 5362383337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5362399121) 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 5 ways as a sum of consecutive naturals, for example, 54718316 + ... + 54718413.

It is an arithmetic number, because the mean of its divisors is an integer number (1039648935).

Almost surely, 2^5362399721 is an apocalyptic number.

It is an amenable number.

5362399721 is a deficient number, since it is larger than the sum of its proper divisors (875493889).

5362399721 is a wasteful number, since it uses less digits than its factorization.

5362399721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109436743 (or 109436736 counting only the distinct ones).

The product of its digits is 612360, while the sum is 47.

The square root of 5362399721 is about 73228.4078824605. The cubic root of 5362399721 is about 1750.3291594175.

The spelling of 5362399721 in words is "five billion, three hundred sixty-two million, three hundred ninety-nine thousand, seven hundred twenty-one".