6906994281 has 32 divisors (see below), whose sum is σ = 11170131840. Its totient is φ = 4183315200.

The previous prime is 6906994279. The next prime is 6906994301. The reversal of 6906994281 is 1824996096.

It is not a de Polignac number, because 6906994281 - 2¹ = 6906994279 is a prime.

It is a super-2 number, since 2×6906994281² = 95413139995533413922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6906994201) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 504381 + ... + 517893.

It is an arithmetic number, because the mean of its divisors is an integer number (349066620).

Almost surely, 2^6906994281 is an apocalyptic number.

It is an amenable number.

6906994281 is a deficient number, since it is larger than the sum of its proper divisors (4263137559).

6906994281 is a wasteful number, since it uses less digits than its factorization.

6906994281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15254 (or 15248 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 54.

The square root of 6906994281 is about 83108.3285898592. The cubic root of 6906994281 is about 1904.4213085087.

The spelling of 6906994281 in words is "six billion, nine hundred six million, nine hundred ninety-four thousand, two hundred eighty-one".