5139866793 has 4 divisors (see below), whose sum is σ = 6853155728. Its totient is φ = 3426577860.

The previous prime is 5139866779. The next prime is 5139866813. The reversal of 5139866793 is 3976689315.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 5139866793 - 2⁴ = 5139866777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5139866713) 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, 856644463 + ... + 856644468.

It is an arithmetic number, because the mean of its divisors is an integer number (1713288932).

Almost surely, 2^5139866793 is an apocalyptic number.

It is an amenable number.

5139866793 is a deficient number, since it is larger than the sum of its proper divisors (1713288935).

5139866793 is a wasteful number, since it uses less digits than its factorization.

5139866793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1713288934.

The product of its digits is 7348320, while the sum is 57.

The square root of 5139866793 is about 71692.8643101948. The cubic root of 5139866793 is about 1725.7741305073.

The spelling of 5139866793 in words is "five billion, one hundred thirty-nine million, eight hundred sixty-six thousand, seven hundred ninety-three".