2135795911638 has 16 divisors (see below), whose sum is σ = 4271629446000. Its totient is φ = 711925700096.

The previous prime is 2135795911631. The next prime is 2135795911741. The reversal of 2135795911638 is 8361195975312.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2135795911631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 800763 + ... + 2216486.

It is an arithmetic number, because the mean of its divisors is an integer number (266976840375).

Almost surely, 2^{2135795911638} is an apocalyptic number.

2135795911638 is an abundant number, since it is smaller than the sum of its proper divisors (2135833534362).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2135795911638 is a wasteful number, since it uses less digits than its factorization.

2135795911638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3135231.

The product of its digits is 12247200, while the sum is 60.

The spelling of 2135795911638 in words is "two trillion, one hundred thirty-five billion, seven hundred ninety-five million, nine hundred eleven thousand, six hundred thirty-eight".