6617442867 has 16 divisors (see below), whose sum is σ = 10145591040. Its totient is φ = 3758195232.

The previous prime is 6617442863. The next prime is 6617442877. The reversal of 6617442867 is 7682447166.

It is not a de Polignac number, because 6617442867 - 2² = 6617442863 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6617442863) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 963192 + ... + 970037.

It is an arithmetic number, because the mean of its divisors is an integer number (634099440).

Almost surely, 2^6617442867 is an apocalyptic number.

6617442867 is a deficient number, since it is larger than the sum of its proper divisors (3528148173).

6617442867 is a wasteful number, since it uses less digits than its factorization.

6617442867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1933402.

The product of its digits is 2709504, while the sum is 51.

The square root of 6617442867 is about 81347.6666352514. Note that the first 4 decimals coincide. The cubic root of 6617442867 is about 1877.4284733003.

The spelling of 6617442867 in words is "six billion, six hundred seventeen million, four hundred forty-two thousand, eight hundred sixty-seven".