7145936786 has 4 divisors (see below), whose sum is σ = 10718905182. Its totient is φ = 3572968392.

The previous prime is 7145936779. The next prime is 7145936843. The reversal of 7145936786 is 6876395417.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 6737290561 + 408646225 = 82081^2 + 20215^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1786484195 + ... + 1786484198.

Almost surely, 2^7145936786 is an apocalyptic number.

7145936786 is a deficient number, since it is larger than the sum of its proper divisors (3572968396).

7145936786 is a wasteful number, since it uses less digits than its factorization.

7145936786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3572968395.

The product of its digits is 7620480, while the sum is 56.

The square root of 7145936786 is about 84533.6429239862. The cubic root of 7145936786 is about 1926.1335235295.

The spelling of 7145936786 in words is "seven billion, one hundred forty-five million, nine hundred thirty-six thousand, seven hundred eighty-six".