2780254164 has 24 divisors (see below), whose sum is σ = 6508127808. Its totient is φ = 923770240.

The previous prime is 2780254159. The next prime is 2780254207. The reversal of 2780254164 is 4614520872.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 368757 + ... + 376220.

It is an arithmetic number, because the mean of its divisors is an integer number (271171992).

Almost surely, 2^2780254164 is an apocalyptic number.

It is an amenable number.

2780254164 is an abundant number, since it is smaller than the sum of its proper divisors (3727873644).

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

2780254164 is a wasteful number, since it uses less digits than its factorization.

2780254164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 745295 (or 745293 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 39.

The square root of 2780254164 is about 52728.1154982804. The cubic root of 2780254164 is about 1406.1387177678.

The spelling of 2780254164 in words is "two billion, seven hundred eighty million, two hundred fifty-four thousand, one hundred sixty-four".