2797749509 has 8 divisors (see below), whose sum is σ = 3020060160. Its totient is φ = 2583828016.

The previous prime is 2797749499. The next prime is 2797749511. The reversal of 2797749509 is 9059477972.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2797749509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2797749569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2096597 + ... + 2097930.

It is an arithmetic number, because the mean of its divisors is an integer number (377507520).

Almost surely, 2^2797749509 is an apocalyptic number.

2797749509 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

2797749509 is a deficient number, since it is larger than the sum of its proper divisors (222310651).

2797749509 is a wasteful number, since it uses less digits than its factorization.

2797749509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4194579.

The product of its (nonzero) digits is 10001880, while the sum is 59.

The square root of 2797749509 is about 52893.7568055059. The cubic root of 2797749509 is about 1409.0820289516.

The spelling of 2797749509 in words is "two billion, seven hundred ninety-seven million, seven hundred forty-nine thousand, five hundred nine".