7864665417 has 24 divisors (see below), whose sum is σ = 13097844864. Its totient is φ = 4454319744.

The previous prime is 7864665397. The next prime is 7864665449. The reversal of 7864665417 is 7145664687.

It is not a de Polignac number, because 7864665417 - 2¹⁸ = 7864403273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7864665467) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 545253 + ... + 559490.

It is an arithmetic number, because the mean of its divisors is an integer number (545743536).

Almost surely, 2^7864665417 is an apocalyptic number.

It is an amenable number.

7864665417 is a deficient number, since it is larger than the sum of its proper divisors (5233179447).

7864665417 is a wasteful number, since it uses less digits than its factorization.

7864665417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1104869 (or 1104866 counting only the distinct ones).

The product of its digits is 6773760, while the sum is 54.

The square root of 7864665417 is about 88682.9488515126. The cubic root of 7864665417 is about 1988.6579182641.

The spelling of 7864665417 in words is "seven billion, eight hundred sixty-four million, six hundred sixty-five thousand, four hundred seventeen".