5371399685 has 4 divisors (see below), whose sum is σ = 6445679628. Its totient is φ = 4297119744.

The previous prime is 5371399661. The next prime is 5371399711. The reversal of 5371399685 is 5869931735.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3467560996 + 1903838689 = 58886^2 + 43633^2 .

It is a cyclic number.

It is not a de Polignac number, because 5371399685 - 2¹⁰ = 5371398661 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5371399685.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 537139964 + ... + 537139973.

It is an arithmetic number, because the mean of its divisors is an integer number (1611419907).

Almost surely, 2^5371399685 is an apocalyptic number.

It is an amenable number.

5371399685 is a deficient number, since it is larger than the sum of its proper divisors (1074279943).

5371399685 is a wasteful number, since it uses less digits than its factorization.

5371399685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1074279942.

The product of its digits is 6123600, while the sum is 56.

The square root of 5371399685 is about 73289.8334354773. The cubic root of 5371399685 is about 1751.3078316233.

The spelling of 5371399685 in words is "five billion, three hundred seventy-one million, three hundred ninety-nine thousand, six hundred eighty-five".