2781099468 has 72 divisors (see below), whose sum is σ = 8387458800. Its totient is φ = 794598336.

The previous prime is 2781099439. The next prime is 2781099473. The reversal of 2781099468 is 8649901872.

2781099468 is a `hidden beast` number, since 2 + 78 + 109 + 9 + 468 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 257473 + ... + 268056.

Almost surely, 2^2781099468 is an apocalyptic number.

2781099468 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2781099468 is an abundant number, since it is smaller than the sum of its proper divisors (5606359332).

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

2781099468 is a wasteful number, since it uses less digits than its factorization.

2781099468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525556 (or 525541 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 54.

The square root of 2781099468 is about 52736.1305747777. The cubic root of 2781099468 is about 1406.2812100451.

The spelling of 2781099468 in words is "two billion, seven hundred eighty-one million, ninety-nine thousand, four hundred sixty-eight".