2639272101 has 4 divisors (see below), whose sum is σ = 3519029472. Its totient is φ = 1759514732.

The previous prime is 2639272099. The next prime is 2639272109. The reversal of 2639272101 is 1012729362.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2639272101 - 2¹ = 2639272099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2639272109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 439878681 + ... + 439878686.

It is an arithmetic number, because the mean of its divisors is an integer number (879757368).

Almost surely, 2^2639272101 is an apocalyptic number.

It is an amenable number.

2639272101 is a deficient number, since it is larger than the sum of its proper divisors (879757371).

2639272101 is an equidigital number, since it uses as much as digits as its factorization.

2639272101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 879757370.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 2639272101 is about 51373.8464688016. The cubic root of 2639272101 is about 1381.9576118475.

The spelling of 2639272101 in words is "two billion, six hundred thirty-nine million, two hundred seventy-two thousand, one hundred one".