465678981899 has 4 divisors (see below), whose sum is σ = 469345745664. Its totient is φ = 462012218136.

The previous prime is 465678981893. The next prime is 465678981953. The reversal of 465678981899 is 998189876564.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 465678981899 - 2⁸ = 465678981643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (465678981893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1833381692 + ... + 1833381945.

It is an arithmetic number, because the mean of its divisors is an integer number (117336436416).

Almost surely, 2^465678981899 is an apocalyptic number.

465678981899 is a deficient number, since it is larger than the sum of its proper divisors (3666763765).

465678981899 is a wasteful number, since it uses less digits than its factorization.

465678981899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3666763764.

The product of its digits is 1881169920, while the sum is 80.

The spelling of 465678981899 in words is "four hundred sixty-five billion, six hundred seventy-eight million, nine hundred eighty-one thousand, eight hundred ninety-nine".