2135571537707 has 4 divisors (see below), whose sum is σ = 2136418653096. Its totient is φ = 2134724422320.

The previous prime is 2135571537691. The next prime is 2135571537709. The reversal of 2135571537707 is 7077351755312.

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 2135571537707 - 2⁴ = 2135571537691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2135571537709) 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, 423553913 + ... + 423558954.

It is an arithmetic number, because the mean of its divisors is an integer number (534104663274).

Almost surely, 2^{2135571537707} is an apocalyptic number.

2135571537707 is a deficient number, since it is larger than the sum of its proper divisors (847115389).

2135571537707 is an equidigital number, since it uses as much as digits as its factorization.

2135571537707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 847115388.

The product of its (nonzero) digits is 5402250, while the sum is 53.

The spelling of 2135571537707 in words is "two trillion, one hundred thirty-five billion, five hundred seventy-one million, five hundred thirty-seven thousand, seven hundred seven".