5686399157 has 4 divisors (see below), whose sum is σ = 5686550316. Its totient is φ = 5686248000.

The previous prime is 5686399153. The next prime is 5686399189. The reversal of 5686399157 is 7519936865.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 5233943716 + 452455441 = 72346^2 + 21271^2 .

It is a cyclic number.

It is not a de Polignac number, because 5686399157 - 2² = 5686399153 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5686399096 and 5686399105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5686399153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30173 + ... + 110829.

It is an arithmetic number, because the mean of its divisors is an integer number (1421637579).

Almost surely, 2^5686399157 is an apocalyptic number.

It is an amenable number.

5686399157 is a deficient number, since it is larger than the sum of its proper divisors (151159).

5686399157 is an equidigital number, since it uses as much as digits as its factorization.

5686399157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151158.

The product of its digits is 12247200, while the sum is 59.

The square root of 5686399157 is about 75408.2167737707. The cubic root of 5686399157 is about 1784.8940723389.

The spelling of 5686399157 in words is "five billion, six hundred eighty-six million, three hundred ninety-nine thousand, one hundred fifty-seven".