2775479797 has 8 divisors (see below), whose sum is σ = 2785328640. Its totient is φ = 2765642880.

The previous prime is 2775479737. The next prime is 2775479803. The reversal of 2775479797 is 7979745772.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2775479797 is a prime.

It is a super-2 number, since 2×2775479797² = 15406576207110322418, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2775479737) 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, 962604 + ... + 965482.

It is an arithmetic number, because the mean of its divisors is an integer number (348166080).

Almost surely, 2^2775479797 is an apocalyptic number.

It is an amenable number.

2775479797 is a deficient number, since it is larger than the sum of its proper divisors (9848843).

2775479797 is a wasteful number, since it uses less digits than its factorization.

2775479797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5963.

The product of its digits is 54454680, while the sum is 64.

The square root of 2775479797 is about 52682.8225990218. The cubic root of 2775479797 is about 1405.3333634824. Note that the first 4 decimals are identical.

The spelling of 2775479797 in words is "two billion, seven hundred seventy-five million, four hundred seventy-nine thousand, seven hundred ninety-seven".