2136408707 has 4 divisors (see below), whose sum is σ = 2136647280. Its totient is φ = 2136170136.

The previous prime is 2136408691. The next prime is 2136408709. The reversal of 2136408707 is 7078046312.

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

It is a cyclic number.

It is not a de Polignac number, because 2136408707 - 2⁴ = 2136408691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2136408709) 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, 105308 + ... + 123945.

It is an arithmetic number, because the mean of its divisors is an integer number (534161820).

Almost surely, 2^2136408707 is an apocalyptic number.

2136408707 is a deficient number, since it is larger than the sum of its proper divisors (238573).

2136408707 is an equidigital number, since it uses as much as digits as its factorization.

2136408707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238572.

The product of its (nonzero) digits is 56448, while the sum is 38.

The square root of 2136408707 is about 46221.3014420840. The cubic root of 2136408707 is about 1287.9374742595.

The spelling of 2136408707 in words is "two billion, one hundred thirty-six million, four hundred eight thousand, seven hundred seven".