2138011731526 has 32 divisors (see below), whose sum is σ = 3534877221120. Its totient is φ = 961786020000.

The previous prime is 2138011731521. The next prime is 2138011731533. The reversal of 2138011731526 is 6251371108312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2138011731521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 366106 + ... + 2100013.

It is an arithmetic number, because the mean of its divisors is an integer number (110464913160).

Almost surely, 2^{2138011731526} is an apocalyptic number.

2138011731526 is a deficient number, since it is larger than the sum of its proper divisors (1396865489594).

2138011731526 is a wasteful number, since it uses less digits than its factorization.

2138011731526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2466540.

The product of its (nonzero) digits is 60480, while the sum is 40.

Adding to 2138011731526 its reverse (6251371108312), we get a palindrome (8389382839838).

The spelling of 2138011731526 in words is "two trillion, one hundred thirty-eight billion, eleven million, seven hundred thirty-one thousand, five hundred twenty-six".