2778232863 has 8 divisors (see below), whose sum is σ = 4233497728. Its totient is φ = 1587561624.

The previous prime is 2778232841. The next prime is 2778232879. The reversal of 2778232863 is 3682328772.

2778232863 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 2778232863 - 2²¹ = 2776135711 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 (2778232883) 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, 66148381 + ... + 66148422.

It is an arithmetic number, because the mean of its divisors is an integer number (529187216).

Almost surely, 2^2778232863 is an apocalyptic number.

2778232863 is a deficient number, since it is larger than the sum of its proper divisors (1455264865).

2778232863 is a wasteful number, since it uses less digits than its factorization.

2778232863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132296813.

The product of its digits is 1354752, while the sum is 48.

The square root of 2778232863 is about 52708.9448101553. The cubic root of 2778232863 is about 1405.7978713928.

It can be divided in two parts, 2778 and 232863, that added together give a triangular number (235641 = T₆₈₆).

The spelling of 2778232863 in words is "two billion, seven hundred seventy-eight million, two hundred thirty-two thousand, eight hundred sixty-three".