2278965479 has 4 divisors (see below), whose sum is σ = 2604531984. Its totient is φ = 1953398976.

The previous prime is 2278965449. The next prime is 2278965499. The reversal of 2278965479 is 9745698722.

It is a happy number.

2278965479 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 2278965479 - 2⁸ = 2278965223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2278965449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162783242 + ... + 162783255.

It is an arithmetic number, because the mean of its divisors is an integer number (651132996).

Almost surely, 2^2278965479 is an apocalyptic number.

2278965479 is a deficient number, since it is larger than the sum of its proper divisors (325566505).

2278965479 is an equidigital number, since it uses as much as digits as its factorization.

2278965479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325566504.

The product of its digits is 15240960, while the sum is 59.

The square root of 2278965479 is about 47738.5114870583. The cubic root of 2278965479 is about 1315.9697779712.

The spelling of 2278965479 in words is "two billion, two hundred seventy-eight million, nine hundred sixty-five thousand, four hundred seventy-nine".