5109678997 has 8 divisors (see below), whose sum is σ = 5236703640. Its totient is φ = 4982768640.

The previous prime is 5109678929. The next prime is 5109679031. The reversal of 5109678997 is 7998769015.

It can be written as a sum of positive squares in 4 ways, for example, as 136749636 + 4972929361 = 11694^2 + 70519^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5109678997 - 2⁷ = 5109678869 is a prime.

It is a super-2 number, since 2×5109678997² = 52217638904765852018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5109678907) 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, 65779 + ... + 120607.

It is an arithmetic number, because the mean of its divisors is an integer number (654587955).

Almost surely, 2^5109678997 is an apocalyptic number.

It is an amenable number.

5109678997 is a deficient number, since it is larger than the sum of its proper divisors (127024643).

5109678997 is a wasteful number, since it uses less digits than its factorization.

5109678997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57143.

The product of its (nonzero) digits is 8573040, while the sum is 61.

The square root of 5109678997 is about 71482.0186970122. The cubic root of 5109678997 is about 1722.3888517719.

The spelling of 5109678997 in words is "five billion, one hundred nine million, six hundred seventy-eight thousand, nine hundred ninety-seven".