2720299645 has 16 divisors (see below), whose sum is σ = 3735780480. Its totient is φ = 1862806464.

The previous prime is 2720299531. The next prime is 2720299657. The reversal of 2720299645 is 5469920272.

2720299645 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 2720299645 - 2¹⁵ = 2720266877 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2720299595 and 2720299604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26722 + ... + 78451.

It is an arithmetic number, because the mean of its divisors is an integer number (233486280).

Almost surely, 2^2720299645 is an apocalyptic number.

It is an amenable number.

2720299645 is a deficient number, since it is larger than the sum of its proper divisors (1015480835).

2720299645 is a wasteful number, since it uses less digits than its factorization.

2720299645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105924.

The product of its (nonzero) digits is 544320, while the sum is 46.

The square root of 2720299645 is about 52156.4918778094. The cubic root of 2720299645 is about 1395.9576668594.

The spelling of 2720299645 in words is "two billion, seven hundred twenty million, two hundred ninety-nine thousand, six hundred forty-five".