2778468926 has 16 divisors (see below), whose sum is σ = 4254930000. Its totient is φ = 1360265088.

The previous prime is 2778468923. The next prime is 2778468929. The reversal of 2778468926 is 6298648772.

It is an interprime number because it is at equal distance from previous prime (2778468923) and next prime (2778468929).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2778468923) 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, 26630 + ... + 79158.

It is an arithmetic number, because the mean of its divisors is an integer number (265933125).

Almost surely, 2^2778468926 is an apocalyptic number.

2778468926 is a deficient number, since it is larger than the sum of its proper divisors (1476461074).

2778468926 is a wasteful number, since it uses less digits than its factorization.

2778468926 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53083.

The product of its digits is 16257024, while the sum is 59.

The square root of 2778468926 is about 52711.1840694174. The cubic root of 2778468926 is about 1405.8376865655.

The spelling of 2778468926 in words is "two billion, seven hundred seventy-eight million, four hundred sixty-eight thousand, nine hundred twenty-six".