6734423561 has 8 divisors (see below), whose sum is σ = 6811776648. Its totient is φ = 6657280000.

The previous prime is 6734423557. The next prime is 6734423567. The reversal of 6734423561 is 1653244376.

It can be written as a sum of positive squares in 4 ways, for example, as 4966725625 + 1767697936 = 70475^2 + 42044^2 .

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 6734423561 - 2² = 6734423557 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6734423567) 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, 12731 + ... + 116751.

It is an arithmetic number, because the mean of its divisors is an integer number (851472081).

Almost surely, 2^6734423561 is an apocalyptic number.

It is an amenable number.

6734423561 is a deficient number, since it is larger than the sum of its proper divisors (77353087).

6734423561 is a wasteful number, since it uses less digits than its factorization.

6734423561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104763.

The product of its digits is 362880, while the sum is 41.

The square root of 6734423561 is about 82063.5336857974. The cubic root of 6734423561 is about 1888.4267453230.

The spelling of 6734423561 in words is "six billion, seven hundred thirty-four million, four hundred twenty-three thousand, five hundred sixty-one".