7270319778 has 16 divisors (see below), whose sum is σ = 15042041280. Its totient is φ = 2339872976.

The previous prime is 7270319753. The next prime is 7270319779. The reversal of 7270319778 is 8779130727.

It is a self number, because there is not a number n which added to its sum of digits gives 7270319778.

It is not an unprimeable number, because it can be changed into a prime (7270319779) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20891550 + ... + 20891897.

It is an arithmetic number, because the mean of its divisors is an integer number (940127580).

Almost surely, 2^7270319778 is an apocalyptic number.

7270319778 is an abundant number, since it is smaller than the sum of its proper divisors (7771721502).

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

7270319778 is a wasteful number, since it uses less digits than its factorization.

7270319778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41783481.

The product of its (nonzero) digits is 1037232, while the sum is 51.

The square root of 7270319778 is about 85266.1701848981. The cubic root of 7270319778 is about 1937.2448027282.

The spelling of 7270319778 in words is "seven billion, two hundred seventy million, three hundred nineteen thousand, seven hundred seventy-eight".