2509230720782 has 16 divisors (see below), whose sum is σ = 3962167779600. Its totient is φ = 1188515612160.

The previous prime is 2509230720781. The next prime is 2509230720817. The reversal of 2509230720782 is 2870270329052.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2509230720781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1188569 + ... + 2535972.

It is an arithmetic number, because the mean of its divisors is an integer number (247635486225).

Almost surely, 2^{2509230720782} is an apocalyptic number.

2509230720782 is a deficient number, since it is larger than the sum of its proper divisors (1452937058818).

2509230720782 is a wasteful number, since it uses less digits than its factorization.

2509230720782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3742291.

The product of its (nonzero) digits is 846720, while the sum is 47.

The spelling of 2509230720782 in words is "two trillion, five hundred nine billion, two hundred thirty million, seven hundred twenty thousand, seven hundred eighty-two".