2778356463 has 16 divisors (see below), whose sum is σ = 3800244096. Its totient is φ = 1804572000.

The previous prime is 2778356437. The next prime is 2778356467. The reversal of 2778356463 is 3646538772.

It is not a de Polignac number, because 2778356463 - 2¹⁶ = 2778290927 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2778356467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24088 + ... + 78338.

It is an arithmetic number, because the mean of its divisors is an integer number (237515256).

Almost surely, 2^2778356463 is an apocalyptic number.

2778356463 is a deficient number, since it is larger than the sum of its proper divisors (1021887633).

2778356463 is a wasteful number, since it uses less digits than its factorization.

2778356463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54694.

The product of its digits is 5080320, while the sum is 51.

The square root of 2778356463 is about 52710.1172736316. The cubic root of 2778356463 is about 1405.8187184622.

The spelling of 2778356463 in words is "two billion, seven hundred seventy-eight million, three hundred fifty-six thousand, four hundred sixty-three".