2778964062 has 64 divisors (see below), whose sum is σ = 6566596608. Its totient is φ = 768031200.

The previous prime is 2778964057. The next prime is 2778964079. The reversal of 2778964062 is 2604698772.

It is a junction number, because it is equal to n+sod(n) for n = 2778963996 and 2778964014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1250112 + ... + 1252332.

It is an arithmetic number, because the mean of its divisors is an integer number (102603072).

Almost surely, 2^2778964062 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2778964062, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3283298304).

2778964062 is an abundant number, since it is smaller than the sum of its proper divisors (3787632546).

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

2778964062 is an equidigital number, since it uses as much as digits as its factorization.

2778964062 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2326 (or 2264 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 51.

The square root of 2778964062 is about 52715.8805484647. The cubic root of 2778964062 is about 1405.9211905292.

The spelling of 2778964062 in words is "two billion, seven hundred seventy-eight million, nine hundred sixty-four thousand, sixty-two".