2150236768081 has 4 divisors (see below), whose sum is σ = 2171112853312. Its totient is φ = 2129360682852.

The previous prime is 2150236768049. The next prime is 2150236768103. The reversal of 2150236768081 is 1808676320512.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2150236768081 - 2⁵ = 2150236768049 is a prime.

It is a super-2 number, since 2×2150236768081² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2150236718081) 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 3 ways as a sum of consecutive naturals, for example, 10438042461 + ... + 10438042666.

It is an arithmetic number, because the mean of its divisors is an integer number (542778213328).

Almost surely, 2^{2150236768081} is an apocalyptic number.

It is an amenable number.

2150236768081 is a deficient number, since it is larger than the sum of its proper divisors (20876085231).

2150236768081 is a wasteful number, since it uses less digits than its factorization.

2150236768081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20876085230.

The product of its (nonzero) digits is 967680, while the sum is 49.

The spelling of 2150236768081 in words is "two trillion, one hundred fifty billion, two hundred thirty-six million, seven hundred sixty-eight thousand, eighty-one".