2649753421 has 8 divisors (see below), whose sum is σ = 3028783104. Its totient is φ = 2270847120.

The previous prime is 2649753413. The next prime is 2649753473. The reversal of 2649753421 is 1243579462.

2649753421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 2649753421 - 2³ = 2649753413 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 (2649753481) 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, 20991 + ... + 75763.

It is an arithmetic number, because the mean of its divisors is an integer number (378597888).

Almost surely, 2^2649753421 is an apocalyptic number.

It is an amenable number.

2649753421 is a deficient number, since it is larger than the sum of its proper divisors (379029683).

2649753421 is an equidigital number, since it uses as much as digits as its factorization.

2649753421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61691.

The product of its digits is 362880, while the sum is 43.

The square root of 2649753421 is about 51475.7556622533. The cubic root of 2649753421 is about 1383.7845812060.

The spelling of 2649753421 in words is "two billion, six hundred forty-nine million, seven hundred fifty-three thousand, four hundred twenty-one".