5091239799 has 8 divisors (see below), whose sum is σ = 7542577520. Its totient is φ = 3394159848.

The previous prime is 5091239789. The next prime is 5091239807. The reversal of 5091239799 is 9979321905.

5091239799 is a `hidden beast` number, since 509 + 12 + 39 + 7 + 99 = 666.

It is not a de Polignac number, because 5091239799 - 2²⁷ = 4957022071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5091239729) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94282192 + ... + 94282245.

It is an arithmetic number, because the mean of its divisors is an integer number (942822190).

Almost surely, 2^5091239799 is an apocalyptic number.

5091239799 is a deficient number, since it is larger than the sum of its proper divisors (2451337721).

5091239799 is a wasteful number, since it uses less digits than its factorization.

5091239799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188564446 (or 188564440 counting only the distinct ones).

The product of its (nonzero) digits is 1377810, while the sum is 54.

The square root of 5091239799 is about 71352.9242498161. The cubic root of 5091239799 is about 1720.3145043017.

The spelling of 5091239799 in words is "five billion, ninety-one million, two hundred thirty-nine thousand, seven hundred ninety-nine".