2106757427747 has 4 divisors (see below), whose sum is σ = 2407722774576. Its totient is φ = 1805792080920.

The previous prime is 2106757427693. The next prime is 2106757427779. The reversal of 2106757427747 is 7477247576012.

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 2106757427747 - 2¹² = 2106757423651 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2106757427647) 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, 150482673404 + ... + 150482673417.

It is an arithmetic number, because the mean of its divisors is an integer number (601930693644).

Almost surely, 2^{2106757427747} is an apocalyptic number.

2106757427747 is a deficient number, since it is larger than the sum of its proper divisors (300965346829).

2106757427747 is an equidigital number, since it uses as much as digits as its factorization.

2106757427747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300965346828.

The product of its (nonzero) digits is 32269440, while the sum is 59.

The spelling of 2106757427747 in words is "two trillion, one hundred six billion, seven hundred fifty-seven million, four hundred twenty-seven thousand, seven hundred forty-seven".