6209428681 has 8 divisors (see below), whose sum is σ = 6410852864. Its totient is φ = 6008074560.

The previous prime is 6209428669. The next prime is 6209428733. The reversal of 6209428681 is 1868249026.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6209428681 - 2¹³ = 6209420489 is a prime.

It is a super-2 number, since 2×6209428681² = 77114009088850799522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6209423681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 209521 + ... + 237313.

It is an arithmetic number, because the mean of its divisors is an integer number (801356608).

Almost surely, 2^6209428681 is an apocalyptic number.

It is an amenable number.

6209428681 is a deficient number, since it is larger than the sum of its proper divisors (201424183).

6209428681 is a wasteful number, since it uses less digits than its factorization.

6209428681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35031.

The product of its (nonzero) digits is 331776, while the sum is 46.

The square root of 6209428681 is about 78799.9281789013. The cubic root of 6209428681 is about 1838.0213332223.

The spelling of 6209428681 in words is "six billion, two hundred nine million, four hundred twenty-eight thousand, six hundred eighty-one".