2520688923 has 48 divisors (see below), whose sum is σ = 3988347520. Its totient is φ = 1573084800.

The previous prime is 2520688921. The next prime is 2520688927. The reversal of 2520688923 is 3298860252.

It is a happy number.

It is not a de Polignac number, because 2520688923 - 2¹ = 2520688921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2520688921) 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 in 47 ways as a sum of consecutive naturals, for example, 1645668 + ... + 1647198.

Almost surely, 2^2520688923 is an apocalyptic number.

2520688923 is a deficient number, since it is larger than the sum of its proper divisors (1467658597).

2520688923 is a wasteful number, since it uses less digits than its factorization.

2520688923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1785 (or 1762 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The square root of 2520688923 is about 50206.4629604596. The cubic root of 2520688923 is about 1360.9424197107.

The spelling of 2520688923 in words is "two billion, five hundred twenty million, six hundred eighty-eight thousand, nine hundred twenty-three".