6491607069 has 8 divisors (see below), whose sum is σ = 8670636832. Its totient is φ = 4320157680.

The previous prime is 6491607047. The next prime is 6491607091. The reversal of 6491607069 is 9607061946.

6491607069 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (6491607047) and next prime (6491607091).

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

It is not a de Polignac number, because 6491607069 - 2¹⁹ = 6491082781 is a prime.

It is a super-2 number, since 2×6491607069² = 84281924676581541522, 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 (6491607169) 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, 1893094 + ... + 1896519.

It is an arithmetic number, because the mean of its divisors is an integer number (1083829604).

Almost surely, 2^6491607069 is an apocalyptic number.

It is an amenable number.

6491607069 is a deficient number, since it is larger than the sum of its proper divisors (2179029763).

6491607069 is a wasteful number, since it uses less digits than its factorization.

6491607069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3790187.

The product of its (nonzero) digits is 489888, while the sum is 48.

The square root of 6491607069 is about 80570.5099214347. The cubic root of 6491607069 is about 1865.4519834983.

The spelling of 6491607069 in words is "six billion, four hundred ninety-one million, six hundred seven thousand, sixty-nine".