7158772434 has 64 divisors (see below), whose sum is σ = 16184033280. Its totient is φ = 2092259520.

The previous prime is 7158772417. The next prime is 7158772441. The reversal of 7158772434 is 4342778517.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 189039 + ... + 223725.

It is an arithmetic number, because the mean of its divisors is an integer number (252875520).

Almost surely, 2^7158772434 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7158772434, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8092016640).

7158772434 is an abundant number, since it is smaller than the sum of its proper divisors (9025260846).

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

7158772434 is a wasteful number, since it uses less digits than its factorization.

7158772434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34815.

The product of its digits is 1317120, while the sum is 48.

The square root of 7158772434 is about 84609.5292150949. The cubic root of 7158772434 is about 1927.2860845201.

The spelling of 7158772434 in words is "seven billion, one hundred fifty-eight million, seven hundred seventy-two thousand, four hundred thirty-four".