5391538709 has 4 divisors (see below), whose sum is σ = 5472009504. Its totient is φ = 5311067916.

The previous prime is 5391538687. The next prime is 5391538717. The reversal of 5391538709 is 9078351935.

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 a cyclic number.

It is not a de Polignac number, because 5391538709 - 2¹² = 5391534613 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 (5391538739) 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, 40235297 + ... + 40235430.

It is an arithmetic number, because the mean of its divisors is an integer number (1368002376).

Almost surely, 2^5391538709 is an apocalyptic number.

It is an amenable number.

5391538709 is a deficient number, since it is larger than the sum of its proper divisors (80470795).

5391538709 is an equidigital number, since it uses as much as digits as its factorization.

5391538709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80470794.

The product of its (nonzero) digits is 1020600, while the sum is 50.

The square root of 5391538709 is about 73427.0979203182. The cubic root of 5391538709 is about 1753.4938318727.

The spelling of 5391538709 in words is "five billion, three hundred ninety-one million, five hundred thirty-eight thousand, seven hundred nine".