2653193780 has 96 divisors (see below), whose sum is σ = 5931182880. Its totient is φ = 995604480.

The previous prime is 2653193779. The next prime is 2653193813. The reversal of 2653193780 is 873913562.

It can be written as a sum of positive squares in 16 ways, for example, as 1239884944 + 1413308836 = 35212^2 + 37594^2 .

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 2391866 + ... + 2392974.

It is an arithmetic number, because the mean of its divisors is an integer number (61783155).

Almost surely, 2^2653193780 is an apocalyptic number.

2653193780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2653193780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2965591440).

2653193780 is an abundant number, since it is smaller than the sum of its proper divisors (3277989100).

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

2653193780 is a wasteful number, since it uses less digits than its factorization.

2653193780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1269 (or 1267 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 44.

The square root of 2653193780 is about 51509.1620976307. The cubic root of 2653193780 is about 1384.3832100942.

The spelling of 2653193780 in words is "two billion, six hundred fifty-three million, one hundred ninety-three thousand, seven hundred eighty".