2653949648 has 20 divisors (see below), whose sum is σ = 5876603040. Its totient is φ = 1137406944.

The previous prime is 2653949647. The next prime is 2653949671. The reversal of 2653949648 is 8469493562.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a junction number, because it is equal to n+sod(n) for n = 2653949593 and 2653949602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2653949647) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 11847878 + ... + 11848101.

It is an arithmetic number, because the mean of its divisors is an integer number (293830152).

Almost surely, 2^2653949648 is an apocalyptic number.

2653949648 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2653949648 is an abundant number, since it is smaller than the sum of its proper divisors (3222653392).

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

2653949648 is a wasteful number, since it uses less digits than its factorization.

2653949648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23695994 (or 23695988 counting only the distinct ones).

The product of its digits is 11197440, while the sum is 56.

The square root of 2653949648 is about 51516.4987940757. The cubic root of 2653949648 is about 1384.5146631906.

The spelling of 2653949648 in words is "two billion, six hundred fifty-three million, nine hundred forty-nine thousand, six hundred forty-eight".