2136965384987 has 4 divisors (see below), whose sum is σ = 2137034082456. Its totient is φ = 2136896687520.

The previous prime is 2136965384903. The next prime is 2136965384993. The reversal of 2136965384987 is 7894835696312.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2136965384987 is a prime.

It is a super-3 number, since 3×2136965384987³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2136965384987.

It is not an unprimeable number, because it can be changed into a prime (2136965381987) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34302053 + ... + 34364294.

It is an arithmetic number, because the mean of its divisors is an integer number (534258520614).

Almost surely, 2^{2136965384987} is an apocalyptic number.

2136965384987 is a deficient number, since it is larger than the sum of its proper divisors (68697469).

2136965384987 is an equidigital number, since it uses as much as digits as its factorization.

2136965384987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68697468.

The product of its digits is 470292480, while the sum is 71.

The spelling of 2136965384987 in words is "two trillion, one hundred thirty-six billion, nine hundred sixty-five million, three hundred eighty-four thousand, nine hundred eighty-seven".