2136764782461 has 8 divisors (see below), whose sum is σ = 2849210684320. Its totient is φ = 1424414367792.

The previous prime is 2136764782433. The next prime is 2136764782463. The reversal of 2136764782461 is 1642874676312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2136764782461 - 2¹¹ = 2136764780413 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2136764782463) 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, 23819566 + ... + 23909103.

It is an arithmetic number, because the mean of its divisors is an integer number (356151335540).

Almost surely, 2^{2136764782461} is an apocalyptic number.

It is an amenable number.

2136764782461 is a deficient number, since it is larger than the sum of its proper divisors (712445901859).

2136764782461 is a wasteful number, since it uses less digits than its factorization.

2136764782461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47743595.

The product of its digits is 16257024, while the sum is 57.

The spelling of 2136764782461 in words is "two trillion, one hundred thirty-six billion, seven hundred sixty-four million, seven hundred eighty-two thousand, four hundred sixty-one".