461878878164 has 24 divisors (see below), whose sum is σ = 882127562400. Its totient is φ = 209859517280.

The previous prime is 461878878157. The next prime is 461878878173.

461878878164 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 461878878094 and 461878878103.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2026259 + ... + 2242650.

It is an arithmetic number, because the mean of its divisors is an integer number (36755315100).

Almost surely, 2^461878878164 is an apocalyptic number.

461878878164 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

461878878164 is a deficient number, since it is larger than the sum of its proper divisors (420248684236).

461878878164 is a wasteful number, since it uses less digits than its factorization.

461878878164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4271383 (or 4271381 counting only the distinct ones).

The product of its digits is 115605504, while the sum is 68.

The spelling of 461878878164 in words is "four hundred sixty-one billion, eight hundred seventy-eight million, eight hundred seventy-eight thousand, one hundred sixty-four".