2778034956 has 24 divisors (see below), whose sum is σ = 6508984944. Its totient is φ = 922168320.

The previous prime is 2778034949. The next prime is 2778034979. The reversal of 2778034956 is 6594308772.

It is a junction number, because it is equal to n+sod(n) for n = 2778034899 and 2778034908.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 477405 + ... + 483188.

It is an arithmetic number, because the mean of its divisors is an integer number (271207706).

Almost surely, 2^2778034956 is an apocalyptic number.

It is an amenable number.

2778034956 is an abundant number, since it is smaller than the sum of its proper divisors (3730949988).

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

2778034956 is a wasteful number, since it uses less digits than its factorization.

2778034956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 960841 (or 960839 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 51.

The square root of 2778034956 is about 52707.0674198442. The cubic root of 2778034956 is about 1405.7644900002.

The spelling of 2778034956 in words is "two billion, seven hundred seventy-eight million, thirty-four thousand, nine hundred fifty-six".