2949720893279 has 4 divisors (see below), whose sum is σ = 2959788200376. Its totient is φ = 2939653586184.

The previous prime is 2949720893261. The next prime is 2949720893281. The reversal of 2949720893279 is 9723980279492.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2949720893279 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 (2949720293279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5033653109 + ... + 5033653694.

It is an arithmetic number, because the mean of its divisors is an integer number (739947050094).

Almost surely, 2^{2949720893279} is an apocalyptic number.

2949720893279 is a deficient number, since it is larger than the sum of its proper divisors (10067307097).

2949720893279 is a wasteful number, since it uses less digits than its factorization.

2949720893279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10067307096.

The product of its (nonzero) digits is 246903552, while the sum is 71.

The spelling of 2949720893279 in words is "two trillion, nine hundred forty-nine billion, seven hundred twenty million, eight hundred ninety-three thousand, two hundred seventy-nine".