5815857091 has 16 divisors (see below), whose sum is σ = 6457651200. Its totient is φ = 5193064800.

The previous prime is 5815857071. The next prime is 5815857107. The reversal of 5815857091 is 1907585185.

It is not a de Polignac number, because 5815857091 - 2²⁷ = 5681639363 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5815857001) 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, 924286 + ... + 930556.

It is an arithmetic number, because the mean of its divisors is an integer number (403603200).

Almost surely, 2^5815857091 is an apocalyptic number.

5815857091 is a deficient number, since it is larger than the sum of its proper divisors (641794109).

5815857091 is a wasteful number, since it uses less digits than its factorization.

5815857091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7770.

The product of its (nonzero) digits is 504000, while the sum is 49.

The square root of 5815857091 is about 76261.7669019018. The cubic root of 5815857091 is about 1798.3376721802.

The spelling of 5815857091 in words is "five billion, eight hundred fifteen million, eight hundred fifty-seven thousand, ninety-one".