2126140261064 has 24 divisors (see below), whose sum is σ = 4128719173410. Its totient is φ = 1026412536576.

The previous prime is 2126140261033. The next prime is 2126140261067. The reversal of 2126140261064 is 4601620416212.

It can be written as a sum of positive squares in 3 ways, for example, as 1817939856100 + 308200404964 = 1348310^2 + 555158^2 .

It is not an unprimeable number, because it can be changed into a prime (2126140261067) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 158000129 + ... + 158013584.

Almost surely, 2^{2126140261064} is an apocalyptic number.

It is an amenable number.

2126140261064 is a deficient number, since it is larger than the sum of its proper divisors (2002578912346).

2126140261064 is a wasteful number, since it uses less digits than its factorization.

2126140261064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316013777 (or 316013744 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 35.

Adding to 2126140261064 its reverse (4601620416212), we get a palindrome (6727760677276).

The spelling of 2126140261064 in words is "two trillion, one hundred twenty-six billion, one hundred forty million, two hundred sixty-one thousand, sixty-four".