2653770646 has 4 divisors (see below), whose sum is σ = 3980655972. Its totient is φ = 1326885322.

The previous prime is 2653770643. The next prime is 2653770653. The reversal of 2653770646 is 6460773562.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6460773562 = 2 ⋅3230386781.

It is a junction number, because it is equal to n+sod(n) for n = 2653770596 and 2653770605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2653770643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 663442660 + ... + 663442663.

It is an arithmetic number, because the mean of its divisors is an integer number (995163993).

Almost surely, 2^2653770646 is an apocalyptic number.

2653770646 is a deficient number, since it is larger than the sum of its proper divisors (1326885326).

2653770646 is a wasteful number, since it uses less digits than its factorization.

2653770646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1326885325.

The product of its (nonzero) digits is 1270080, while the sum is 46.

The square root of 2653770646 is about 51514.7614378636. The cubic root of 2653770646 is about 1384.4835351866.

The spelling of 2653770646 in words is "two billion, six hundred fifty-three million, seven hundred seventy thousand, six hundred forty-six".