6954948779 has 4 divisors (see below), whose sum is σ = 7023809760. Its totient is φ = 6886087800.

The previous prime is 6954948769. The next prime is 6954948811. The reversal of 6954948779 is 9778494596.

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-6954948779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6954948769) 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, 34430339 + ... + 34430540.

It is an arithmetic number, because the mean of its divisors is an integer number (1755952440).

Almost surely, 2^6954948779 is an apocalyptic number.

6954948779 is a deficient number, since it is larger than the sum of its proper divisors (68860981).

6954948779 is a wasteful number, since it uses less digits than its factorization.

6954948779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68860980.

The product of its digits is 137168640, while the sum is 68.

The square root of 6954948779 is about 83396.3355250097. The cubic root of 6954948779 is about 1908.8185432129.

The spelling of 6954948779 in words is "six billion, nine hundred fifty-four million, nine hundred forty-eight thousand, seven hundred seventy-nine".