5158778345 has 16 divisors (see below), whose sum is σ = 7121756928. Its totient is φ = 3514017600.

The previous prime is 5158778329. The next prime is 5158778347. The reversal of 5158778345 is 5438778515.

It is not a de Polignac number, because 5158778345 - 2⁴ = 5158778329 is a prime.

It is a super-2 number, since 2×5158778345² = 53225988025681878050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5158778347) 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, 482774 + ... + 493343.

It is an arithmetic number, because the mean of its divisors is an integer number (445109808).

Almost surely, 2^5158778345 is an apocalyptic number.

It is an amenable number.

5158778345 is a deficient number, since it is larger than the sum of its proper divisors (1962978583).

5158778345 is a wasteful number, since it uses less digits than its factorization.

5158778345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 976280.

The product of its digits is 4704000, while the sum is 53.

The square root of 5158778345 is about 71824.6360589457. The cubic root of 5158778345 is about 1727.8881360529. Note that the first 3 decimals are identical.

The spelling of 5158778345 in words is "five billion, one hundred fifty-eight million, seven hundred seventy-eight thousand, three hundred forty-five".