7157836816 has 45 divisors (see below), whose sum is σ = 15026398461. Its totient is φ = 3301586496.

The previous prime is 7157836799. The next prime is 7157836823. The reversal of 7157836816 is 6186387517.

The square root of 7157836816 is 84604.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1058851600 + 6098985216 = 32540^2 + 78096^2 .

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 4398595 + ... + 4400221.

Almost surely, 2^7157836816 is an apocalyptic number.

7157836816 is the 84604-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7157836816

7157836816 is an abundant number, since it is smaller than the sum of its proper divisors (7868561645).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7157836816 is an equidigital number, since it uses as much as digits as its factorization.

7157836816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3288 (or 1642 counting only the distinct ones).

The product of its digits is 1693440, while the sum is 52.

The cubic root of 7157836816 is about 1927.2021184430.

The spelling of 7157836816 in words is "seven billion, one hundred fifty-seven million, eight hundred thirty-six thousand, eight hundred sixteen".