7250671778 has 32 divisors (see below), whose sum is σ = 13048197120. Its totient is φ = 2956211280.

The previous prime is 7250671763. The next prime is 7250671801. The reversal of 7250671778 is 8771760527.

It is a happy number.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115976 + ... + 167187.

It is an arithmetic number, because the mean of its divisors is an integer number (407756160).

Almost surely, 2^7250671778 is an apocalyptic number.

7250671778 is a deficient number, since it is larger than the sum of its proper divisors (5797525342).

7250671778 is a wasteful number, since it uses less digits than its factorization.

7250671778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283262.

The product of its (nonzero) digits is 1152480, while the sum is 50.

The square root of 7250671778 is about 85150.8765545018. The cubic root of 7250671778 is about 1935.4980970830.

The spelling of 7250671778 in words is "seven billion, two hundred fifty million, six hundred seventy-one thousand, seven hundred seventy-eight".