2749879901 has 4 divisors (see below), whose sum is σ = 2808388032. Its totient is φ = 2691371772.

The previous prime is 2749879877. The next prime is 2749879921. The reversal of 2749879901 is 1099789472.

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 2749879901 - 2⁶ = 2749879837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2749879921) 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, 29253995 + ... + 29254088.

It is an arithmetic number, because the mean of its divisors is an integer number (702097008).

Almost surely, 2^2749879901 is an apocalyptic number.

It is an amenable number.

2749879901 is a deficient number, since it is larger than the sum of its proper divisors (58508131).

2749879901 is an equidigital number, since it uses as much as digits as its factorization.

2749879901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58508130.

The product of its (nonzero) digits is 2286144, while the sum is 56.

The square root of 2749879901 is about 52439.2972969700. The cubic root of 2749879901 is about 1400.9992697507. Note that the first 3 decimals are identical.

The spelling of 2749879901 in words is "two billion, seven hundred forty-nine million, eight hundred seventy-nine thousand, nine hundred one".