2720523465 has 36 divisors (see below), whose sum is σ = 5183244612. Its totient is φ = 1319039040.

The previous prime is 2720523433. The next prime is 2720523469. The reversal of 2720523465 is 5643250272.

2720523465 is a `hidden beast` number, since 2 + 72 + 0 + 523 + 4 + 65 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 487393929 + 2233129536 = 22077^2 + 47256^2 .

It is not a de Polignac number, because 2720523465 - 2⁵ = 2720523433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2720523469) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 244374 + ... + 255263.

It is an arithmetic number, because the mean of its divisors is an integer number (143979017).

Almost surely, 2^2720523465 is an apocalyptic number.

It is an amenable number.

2720523465 is a deficient number, since it is larger than the sum of its proper divisors (2462721147).

2720523465 is a wasteful number, since it uses less digits than its factorization.

2720523465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499670 (or 499656 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 36.

The square root of 2720523465 is about 52158.6374917904. The cubic root of 2720523465 is about 1395.9959512051.

The spelling of 2720523465 in words is "two billion, seven hundred twenty million, five hundred twenty-three thousand, four hundred sixty-five".