2649736019 has 8 divisors (see below), whose sum is σ = 3110115168. Its totient is φ = 2209818240.

The previous prime is 2649736013. The next prime is 2649736031. The reversal of 2649736019 is 9106379462.

It is a happy number.

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

It is not a de Polignac number, because 2649736019 - 2²⁰ = 2648687443 is a prime.

It is a super-2 number, since 2×2649736019² = 14042201940771936722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2649736013) 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, 5115062 + ... + 5115579.

It is an arithmetic number, because the mean of its divisors is an integer number (388764396).

Almost surely, 2^2649736019 is an apocalyptic number.

2649736019 is a deficient number, since it is larger than the sum of its proper divisors (460379149).

2649736019 is a wasteful number, since it uses less digits than its factorization.

2649736019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10230685.

The product of its (nonzero) digits is 489888, while the sum is 47.

The square root of 2649736019 is about 51475.5866309457. The cubic root of 2649736019 is about 1383.7815519087.

The spelling of 2649736019 in words is "two billion, six hundred forty-nine million, seven hundred thirty-six thousand, nineteen".