2136620763256 has 16 divisors (see below), whose sum is σ = 4578473064240. Its totient is φ = 915694612800.

The previous prime is 2136620763217. The next prime is 2136620763257. The reversal of 2136620763256 is 6523670266312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2136620763257) 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, 19076971045 + ... + 19076971156.

It is an arithmetic number, because the mean of its divisors is an integer number (286154566515).

Almost surely, 2^{2136620763256} is an apocalyptic number.

It is an amenable number.

2136620763256 is an abundant number, since it is smaller than the sum of its proper divisors (2441852300984).

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

2136620763256 is a wasteful number, since it uses less digits than its factorization.

2136620763256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38153942214 (or 38153942210 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 49.

The spelling of 2136620763256 in words is "two trillion, one hundred thirty-six billion, six hundred twenty million, seven hundred sixty-three thousand, two hundred fifty-six".