6954480781 has 4 divisors (see below), whose sum is σ = 6984328572. Its totient is φ = 6924632992.

The previous prime is 6954480671. The next prime is 6954480787. The reversal of 6954480781 is 1870844596.

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

It can be written as a sum of positive squares in 2 ways, for example, as 560079556 + 6394401225 = 23666^2 + 79965^2 .

It is a cyclic number.

It is not a de Polignac number, because 6954480781 - 2²³ = 6946092173 is a prime.

It is a super-2 number, since 2×6954480781² = 96729605866596739922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6954480787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14923546 + ... + 14924011.

It is an arithmetic number, because the mean of its divisors is an integer number (1746082143).

Almost surely, 2^6954480781 is an apocalyptic number.

It is an amenable number.

6954480781 is a deficient number, since it is larger than the sum of its proper divisors (29847791).

6954480781 is a wasteful number, since it uses less digits than its factorization.

6954480781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29847790.

The product of its (nonzero) digits is 1935360, while the sum is 52.

The square root of 6954480781 is about 83393.5296111155. The cubic root of 6954480781 is about 1908.7757274987.

The spelling of 6954480781 in words is "six billion, nine hundred fifty-four million, four hundred eighty thousand, seven hundred eighty-one".