2640251064135 has 16 divisors (see below), whose sum is σ = 4252377876480. Its totient is φ = 1398808509600.

The previous prime is 2640251064133. The next prime is 2640251064169. The reversal of 2640251064135 is 5314601520462.

It is not a de Polignac number, because 2640251064135 - 2¹ = 2640251064133 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2640251064093 and 2640251064102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2640251064133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 582834615 + ... + 582839144.

It is an arithmetic number, because the mean of its divisors is an integer number (265773617280).

Almost surely, 2^{2640251064135} is an apocalyptic number.

2640251064135 is a deficient number, since it is larger than the sum of its proper divisors (1612126812345).

2640251064135 is a wasteful number, since it uses less digits than its factorization.

2640251064135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1165673918.

The product of its (nonzero) digits is 172800, while the sum is 39.

Adding to 2640251064135 its reverse (5314601520462), we get a palindrome (7954852584597).

The spelling of 2640251064135 in words is "two trillion, six hundred forty billion, two hundred fifty-one million, sixty-four thousand, one hundred thirty-five".