2749778496 has 224 divisors, whose sum is σ = 8655100800. Its totient is φ = 853493760.

The previous prime is 2749778483. The next prime is 2749778519. The reversal of 2749778496 is 6948779472.

2749778496 is a `hidden beast` number, since 2 + 74 + 9 + 7 + 78 + 496 = 666.

It is a super-2 number, since 2×2749778496² = 15122563554128044032, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2002066 + ... + 2003438.

Almost surely, 2^2749778496 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2749778496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4327550400).

2749778496 is an abundant number, since it is smaller than the sum of its proper divisors (5905322304).

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

2749778496 is a wasteful number, since it uses less digits than its factorization.

2749778496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1474 (or 1458 counting only the distinct ones).

The product of its digits is 42674688, while the sum is 63.

The square root of 2749778496 is about 52438.3304082043. The cubic root of 2749778496 is about 1400.9820483832.

The spelling of 2749778496 in words is "two billion, seven hundred forty-nine million, seven hundred seventy-eight thousand, four hundred ninety-six".